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Chevrolet Pickup 2500 Rear Electric Diff Locker – 1975 to 1977
Preferred Installers
70 Series Auto Conversion Kits
Zero Compromise. On and Off Road
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Electric Diff Lockers
100% Reliable Off-Road Traction. Never Get Stuck Again!
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GVM Upgrade
Fully Engineered, GVM Upgrade Package for 100 Series Landcruisers
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Turbo Kits
Safe, Reliable Power and Torque When You Need It!
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LTG 4×4 is a curated range of high-quality specialised 4WD parts and accessories developed off the back of Tom’s 45 years of 4×4 experience in recreational, trade, and mining. 

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70 Series Auto Conversion Kit

Turbocharger Kits

volvo all models 740 turbo rear electric diff locker - 1984 to 1992

Electric Diff Lockers

isuzu dmax 3rd generation rear air diff locker - 2020 to 2025

Air Diff Lockers

LTG4x4 on-board air compressor with tyre inflation hose and pressure gauge

Air Systems

LTG4x4 front differential overhaul kit with Ring Gear CWP Set, bearings, spacer, seal, gaskets and drive flange

Diff Rebuild Kits

Part Time Conversion Kits

Conversion Engines

toyota 100 series gvm upgrade kit parts

GVM 100 Series Upgrade

toyota landcruiser 79 series 2007 to 2023 gear package

Gear Packages

6x6 Conversions

Intercooler Kits

Provent Catch Cans

Auxiliary Fuel Filters

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Gearbox Upgrades

Unifilters

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Clutch Kits

What our Customers Think

LTG 4x4 Pty LtdExcellentLTG 4x4 Pty Ltd4.9★★★★★ Based on 58 reviews fromSee all reviews review us onGlen TeeceGlen Teece ★★★★★ Purchased the 6 speed auto conversion from Tom at LTG 4x4 to replace the BROKEN 8 SPEED ZF I currently was running, I was used to the clunky problem riddled ZF thinking that it was the answer to all my problems until it had a catastrophic failure in the middle of no where and left me stranded. I called Tom from the bush (thanks Starlink) and after a chat I had a kit organized and sent to my workshop in darwin ready for me for when I eventually managed to get the car recovered and transported home.Before starting anything I strongly recommend carefully reading the instructions first and then start the job, trust me it will help make the whole process easier as you go to each step.My first test drive was absolutely perfect, smooth as silk on the gear changes, it felt like a completely different car to drive. Makes me wish I did this kit the first time. I let Tom know all was good and he was strait onto sending me an update to make it even better. Can’t wait to receive the updated tcu.A massive shout out to Tom and his team for the trouble free service from start to finish and the help along the way it’s been much appreciated.I look forward to finally having some trouble free traveling on my future adventures.CheersGTMichael RowntreeMichael Rowntree ★★★★★ The LTG gvm upgrade is a very simple installation with quality products. The quality of workmanship is second to none. It took me a day and a half to install , and engineering is not a problem. I wouldn’t hesitate recommending this productOnly LandcruisersOnly Landcruisers ★★★★★ We just finished installing the LTG 4X4 automatic conversion kit into a customers vehicle. If you're thinking of making this upgrade we definitely say go for it!It completly improved the VDJ78 driving experience.Tom at LTG was there to answer any questions we had and it was a relatively straight forward installation.We can recommend this product and will use them again going forward.Greg HarrisGreg Harris ★★★★★ I have a 2017 D-max, and I did plenty of carful research before I decided that I was not just going to 'follow the pack', and I have now fitted both front and rear LTG lockers. Right from the start Tom was knowledgeable and patient in helping me make my decision. Fitting both diffs was straight forward and hassle-free, with clear, easy to follow, detailed instructions. Next I needed to check that both diffs were working, but how? It was Saturday afternoon, but I thought I may as well call Tom, on the off chance he might answer. After 2 rings, I get a cheerful "LTG4x4, Tom speaking." Tom was, yet again, obliging and patient as he talked me through the testing process. It seemed like he had all the time in the world for me, and his only focus was for me to be happy. This bloke goes way above-and-beyond, and is obviously proud of the products he sells, and backs it with his enthusiastic sales and aftersales support. The diffs operate exactly as expected, and I have already used them where my D-max traction control system could take me no further. So, if you are looking, and not sure, then just buy LTG, you cannot go wrong. Thanks again Tom.River Auto CentreRiver Auto Centre ★★★★★ Fitted an Auto Conversion for a VDJ79 LandCruiser. Absolutely everything needed was supplied in the kit. Tom @ LTG4x4 has been very helpful and willing to explain and guide us through the process. The conversion kit went in, and now the LandCruiser has way more pickup and goes harder than the manual gearbox could. They just work well together. The Auto has 3 modes, meaning the end user can set the mode they like. Towing has a higher shift point and firmer shifts, making the vehicle go hard. It's impressive to see the vehicle cruising along the highway at ~1600 rpm @ 100km/hr, lower than the manual gearbox. Engine is barely working.andrew Bhnanandrew Bhnan ★★★★★ MASSIVE THANKS TO TOM LTG 4x4 BEST SERIVES BEST 79 SERIES AUTO KIT I GOT MY AUTO CONVERSION KIT DELIVERED LAST WEEK INSTRUCTIONS ARE VERY EASY TO INSTALL VERY STRAIGHTFORWARD WENT 4WD OVER THE LONG WEEKEND WAS ALL GREAT VERY HAPPY WITH ITGiorgia WordenGiorgia Worden ★★★★★ Have recently had a GVM upgrade on my Toyota Landcruiser 100 series by Tom .Tom suggested a Part time kit, it helps fuel economy and and less wear on front driveline CVs and it’s lightened up my steering so win win which keeps cost down on repairs ! Cheers Tom 👍 great suggestion great advice and knowledge 👍 Tom was a pleasure to deal with , very knowledgeable and answered all the questions that I asked. He definitely goes over and beyond and has helped us set our car up for our next journey of caravanning . 100 % Recommend 😊Jim HughesJim Hughes ★★★★★ I had an LTG4x4 auto conversion fitted to my 2021 79 single cab and I'm really impressed! I've just completed a trip I do every year, and even with an extra ton of weight, a roof rack and an engine re-map I got about the same fuel economy as before. It drives great and they customised the console to fit my existing fridge between the seats. The cabin looks impressive, really good, and the best part it was $15,000 cheaper than any other price I was quoted. Thanks to tom and the team at LTG. Super happy.John SmithJohn Smith ★★★★★ The 76 series is now an absolute pleasure to drive with the LTG 4x4 automatic transmission conversion. The DIY kit was comprehensive and easy to follow instructions, any other advice was readily available and freely given by LTG. Highly recommend LTG 4x4Cheers JohnNicola GaleazzoNicola Galeazzo ★★★★★ Great diff lock, impeccable quality. Clear instructions, quite when engage/disengage.It was a pleasure dealing with Tom from LTG4x4Highly recommendedGreg NelsonGreg Nelson ★★★★★ Tom's automatic transmission conversion is by far the best conversion available to suit a 79 series. It is a remarkable achievement to produce an excellent conversion at a REALISTIC PRICE!! Thanks for incorporating the drinks fridge in the consolePleasure to do business with you Tom!!head22449head22449 ★★★★☆ I can’t talk to Steve because a banner is blocking my text window. The banner says Google five stars. I can’t move it or make it disappear. I would really like to ask a few questions about upgrading my 1hz with a turbo kit but I can’t. Very frustrated.Response from the ownerHi mate, we have moved that now. Send me an email to sales@ltg4x4.com.au about your turbo enquiry. Cheers Tom Stewart NobleStewart Noble ★★★★★ LTG are a professional business. Tom was extremely helpful and with all my questions. I purchased the Turbo Kit for a Toyota Coaster and quality of all the components including the Turbo are top notch. The price was excellent value and I received my purchase with 2 days of buying online. I highly recommend LTG.Jason TurnerJason Turner ★★★★★ LTG 4x4 is absolutely amazing to deal with. Tom’s knowledge and expertise was unbelievable. So easy to talk to. It actually felt like I’ve known him as a mate for years. He explained everything in easy to understand terms. And the parts that he supplied were top notch. Transformed my Landcruiser not only to be legal but obviously a lot safer for myself and my family. Highly recommended. Thanx Tom.Leo PretoriusLeo Pretorius ★★★★★ Cant rate Tom from LTG highly enough! Always there to answer your questions and lend a hand absolutely everywhere he can. Had a locker install done by a dodgy workshop and they damaged parts in the locker. Tom overnighted parts to a workshop he trusted and got my diff fully squared away and checked over. Cant rate LTG highly enough. Thanks Tom for all your effort and support!Good Times GarageGood Times Garage ★★★★★ We discovered LTG4X4 through a chance meeting with Founder Tom a little over a year ago and immediately got talking about 4WD products. Having kept in contact, when we were ready to pull the trigger on a kit we knew we wanted to use on of his bolt on kits for the 1HZ (in our case in a 105 Series)We opted for the high performance package with top mount intercooler and full stainless exhaust. We loved the fact that the kit is a 100% bolt on kit and looks very close to factory fit and finish. The fitting instructions are very detailed and include great pictures, but in our case Tom offered to lend a hand to fit the kit as we were under serious time pressure before a trip! Tom got the job done and dusted in a single day before we embarked on a nearly 3000km round trip. On the trip we experienced fuel economy close to standard while towing a 2 tonne camper. Having now put 5000km of driving on the kit we have no exhaust rattles, no water or oil leaks and a very happy engine with more power available if required. Our vehicle has 480k on the clock and it has felt very strong since having the additional power implemented through Tom’s kit.If you are in the market for a turbo kit I would highly recommend the LTG4X4 kit.Joe StelmannJoe Stelmann ★★★★★ Recently my 75 series Troopy with just over a ½ million kms on its 1HZ engine broke a piston head, not bad considering this distance included quite a few thousand pulling a three tonne caravan. So what to do? I contacted Tom at LTG 4x4, someone I’ve known and used over the years to fix and help advise on many issues with several of my 4WD’s. Tom has a wealth of knowledge and experience second to none, which I have found invaluable so many times. After a lot of discussion and some deep thinking, I decided to take advantage of this situation and upgrade the Troopy to a quality used 1HD FT engine procured by Tom. After a relatively short time it arrived and was installed into the old girl. I was really surprised how seamless the change over from the 1HZ was and after just a few hours and a bit of post installation tinkering, the Troopy is back on the road with more power than ever. I’m also much happier with the knowledge that it’s a better designed and tougher motor to work as a towing tug. What I initially thought would be a horrendous chapter in my Troopies history turned out to be an easy and painless exercise. Thanks Tom for all your honest input and professional advice over the years, I really appreciate your great support! JoeS.Geoff CasburnGeoff Casburn ★★★★★ Hi, I recently completed the Canning Stock Route in WA. This was an epic 1800km journey through remote WA, across 4 deserts. To do this, my wife and I carried 140 litres of water, 270 litres of fuel, shower, toilet, beers, and food for 20 days. Our 3.9 Tonne GVM upgrade to our 100 series Landcruiser was every bit needed. With the help of a mechanic friend, we fitted the new rear diff, heavier torsion bars and shocks and followed the fitting instructions. While it was a big job it was comforting to know the upgrade is certified to carry the heavier loads required for our trip. Along with this upgrade we also fitted a free-wheeling front hub kit (to save fuel and wear) and front difflock kit. Again, I needed and recommend professional assistance to fit. Tom, the owner was wonderful to deal with and was always available for fitting advice and trouble shooting. Tom is so knowledgeable and easy to talk to. We highly recommend LTG 4x4 GVM upgrade. It is well worth the cost and effort knowing you can comfortably carry roof top tents, awnings and all the other camping gear as well as tow a boat, which is what we will be doing. Thanks heaps Tom!Omar AlbakourOmar Albakour ★★★★★ Great site for ford ranger partsJeremie BuckJeremie Buck ★★★★★ I purchased a GVM upgrade kit through LTG4x4 for a victorian registered vehicle. Tom was extremely helpful with all of my questions about car weights and legalities. He had prompt communication, even outside of business hours! A forecast 6 week lead time was only slightly extended, but this was done with full communication and done because of upgrades being done to my kit. Good delivery and instructions for installation which made it easy to get the engineering completed. Extremely happy with the customer service and the product has been performing well, it has made it a new vehicle to drive onroad and go adventuring with. Thankyou LTG4x4.Peter WellfarePeter Wellfare ★★★★★ " I recently used the services of LTG 4x4 of Adelaide to supply the equipment and associated information to carry out a GVM upgrade for my 2005 100 Series Toyota Landcruiser. The work was carried out in my home state of Vic. Tom Director of LTG was great to deal with and could not have been helpful enough. It was so convenient to have someone who looks after older Cruisers in this area, as I did not want to part with my old faithful to be GCM legal when towing our van. All items provided were of good quality and Tom has a wealth of knowledge and experience and always provided prompt replies when asked any questions pre and post purchase. Highly recommend this company."Peter - Shepparton Vic.Brody YoungBrody Young ★★★★★ I've had a complete turbo kit for my HZJ105, front and rear lockers and a part time kit for my HDJ100 installed through LGT 4X4 and both times the workmanship has been flawless, I highly recommend Tom and his team for any vehicle work, whether for mild bolt ons to full blown custom work. 10/10Graham WellsteadGraham Wellstead ★★★★★ Many thanks, Tom, for your assistance by phone during my installation of LTG front and rear diff elockers in my 100 series Landcruiser. Tom is available helpful and exceptionally knowledgeable.heath nolanheath nolan ★★★★★ Grate communicate fast post thanksSean GogginSean Goggin ★★★★★ Great kit for 100 series GVM upgrade. Recommend to all 100 series owners looking for a quality upgrade to GVM.Ethian HuynhEthian Huynh ★★★★★ Excellent customer service from Tom. Got to meet and talk to him in person. Very friendly and helpful at explaining the steps to getting my LTG Elocker installed. Very competitive prices too!Gary WilsonGary Wilson ★★★★★ I have to rate LTG 4x4 at 110% having installed an E-Locker in my Isuzu Dmax recently. Tom's instructions were great especially just sliding the axles out [90mm} to save time. All questions about my vehicle where it departed from the norm were sorted quickly. He has infinite patience!!! My only regret was asking a local 4x4 company to check my backlash and preload; they made it too tight and I had to redo the bearings when they failed away from home. If wedges are used like I did in the photo watch you don’t overload it. Shims were lightly tapped in so it was tight and then a small approx. 0.2 was added behind the pack after tapping the wedges in just a whisker more. Advice I was given, not sure of it technically but as a locker has more steel it expands more so allow 0.25 backlash. Locker test was towing large logs left behind on the flood plain; it performed admirably.Will BruinierWill Bruinier ★★★★★ V RubiraV Rubira ★★★★★ Tom at LTG 4x4 was easy to deal with and spent time explaining exactly what was required for my GVM upgrade. He went out of his way to arrange time for fitting and the follow up testing requirements to complete my job. Quality parts and workmanship combined with excellent product knowledge ended in a fantastic result. Could not be happier. Thanks again Tom.Vincent BidesVincent Bides ★★★★★ Competitively priced products, quick shipping and great customer service.Ordered a locker and had it express delivered to Melbourne. Item was ordered last minute and got it shipped by 5pm, arrived on my door 11am the next day.Had it installed on a Sunday, ran to a bit of an issue- called the number on the product packaging and Tom readily took the call and provided clarification. I wasn't expecting an answer being a Sunday, but there you go! Speaks volume about this company, will buy again!- Vincent B.Phil BroekmanPhil Broekman ★★★★★ Excellent customer service by Tom and Jad's Automotive to fit the LTG front locker to my DMAX. I wanted the factory looking switch next to the existing rear locker switch, Lightforce came through with a custom laser etched switch which Tom worked out quite nicely to wire in. I took my DMAX to Adelaide Hills 4X4 Park yesterday for a test session and I was absolutely impressed by the performance! I tried front locker only, rear locker only, and twin locked. I could not fault the LTG after many cycles. I highly recommend the LTG locker to anyone wanting to up their game 😎Carmen FiedlerCarmen Fiedler ★★★★★ Tom helped us out immensely! A week before the Variety Bash, we faced a big problem, and Tom bent over backward to assist us. He was the only person in Adelaide with the product in stock, and understanding our urgency, he dropped everything to fit it in on the same day, even working after hours to get it done. We are incredibly grateful for his help and highly recommend his services!John van VlietJohn van Vliet ★★★★★ So pleased with the great service from Tom at LTG 4x4Had a couple of decent chats with Tom prior to purchase of a rear locker for my Landrover Discovery 1.Delivery was prompt , and straight out of the box the locker looked top quality includinggreat instructions , nice wiring loom and switch.My diff builder was equally impressed and mentioned quality and an easy fit , plus the peace of mind of a great warranty.First test was Sunday and I was so pleased with the difference it has made.The extra grip with the rear diff fully locked was awesome. Engages with ease and I cruised through spots that I previously had a couple of goes at.Looking forward to getting out again .Cheers JohnBrendan SpeetBrendan Speet ★★★★☆ I purchased a GVM up grade from Tom he is very knowledgeable but the communications was extremely poor. I understand things can go wrong but when you're paying 10k it's allot of money and the customer shouldn't have to continually chase things up.Lachlan FernandezLachlan Fernandez ★★★★★ I just want to give a big shoutout to Tom at LTG for his exceptional service. We bought a front diff locker from LTG, and after a major off-road event, we encountered issues with our diff. Tom promptly took action upon learning about the problem and worked tirelessly to resolve it. After just two late-night calls, we discovered that we had bent an axle, causing damage to the diff center. It's worth noting that this issue was not a fault of his product. Once identified, Tom arranged for me to pick up a new diff center the next morning, which completely amazed me. With Tom's support, I was able to reassemble the diff within three nights. Tom, your business and service are truly outstanding! ⭐️⭐️⭐️⭐️⭐️Keith BlakelyKeith Blakely ★★★★★ Tom was very helpful in explaining diff locks and their practical use. I purchased the Electromagnetic Locker for the front diff of my 2003 100 series and it arrived within two days (SA to Qld). After much research it ticked all the boxes for me, no mainenance, leaky air pipes and compressors to install, 100% locked at the flick of a switch on the dash, the service and advice I received before and after left the competition in the dust. I will be back to add other modifications to my Cruiser, Thanks Tom!Response from the ownerGlad you had a great experience Keith! Looking forward to helping you modify your cruiser in the future. Clear Horizons Window CleaningClear Horizons Window Cleaning ★★★★★ Tom , was fantastic to deal with from the first phone call about the information that was was chasing for a complete turbo kit to suit my 79 Toyota, often you buy a product and find it is not as straight forward as you were expecting, I found Toms knowledgeable honest and straightforward , his product was an absolute gem to fit, no bending, cutting, or welding regarding Toms products, I would highly recommend both Tom and his products that he takes so much pride in seeing his clients are well looked after. Thanks again for all your help. David.BrodieBrodie ★★★★★ I ordered a diff lock for my np300 through LTG 4x4 due to the superior proce to other diff locks on the market, Tom went above and beyond to ensure that I got the correct parts for my model and assisted me throughout the install process.David HancockDavid Hancock ★★★★★ Joshua O'DriscollJoshua O'Driscoll ★★★★★ If you have a Jimny and am looking for an E locker solution this is where to go! Tom is fantastic to deal with and has a layby option. The locker is very well priced, clear instructions, easy to wire up and has transformed the little jimny into a weapon that just crawls up hills!Craig TaylorCraig Taylor ★★★★★ To start with Tom was very happy to discuss possible issues on my individual fit up. Payment was easy, shipping was fast from SA to NSW.On opening the package I laid everything out on a bench and checked it all arrived , no parts missing. I was impressed with the cooling and lube lines being all braid.Instructions were clear and concise and easy to follow.The installation was very easy for a reasonably equipped shed like I have. I am clearly no mechanic.After the fit up was complete because of a security device spot welded on the fuel adjustment had to be removed I lost the position of the adjustment screw.A simple message to Tom on a Saturday afternoon on how to get the boost back down and EGT right and what to look for, had the truck running nice. I had fitted a two in one SAAS boost EGT gauge and finally got it right on after some runs over a few days.Tom checked back in with me to make sure all was good and he confirmed all was good.I would recommend you take the dump pipe option as a minimum and a welder and 3" -2.5" adapter that I welded an EGT probe socket and attached a 3 bolt flange to , the exhaust hooked up easily to the reasonably new 2.5 " I have..1 and half days had it up and running . There was no rush doing it.Tip. If you watch You Tube for installs on the 1HZ motor, there are guys that make it look so difficult, taking days to fit up a turbo in pretty good workshops. It isn't that hard at all with this kit and Tom backing it up. Look at your install before you start to ensure you have exhaust components to finish the job, gasket sealant in high temp and normal grade should you need to remove your sump, oil and filters that should be changed . As I said a two in one SAAS boost EGT gauge is a minimum. You will need to purchase a probe socket to weld in.Very happy with the performance , it gives you back a gear or so, and definitely smoother idling and driving..I am very happy I took this option .. and would recommend this kit.Katie-Jo KnightKatie-Jo Knight ★★★★★ One of the best installation kits i have use received all parts required and assemble instructions were easy to follow and if needed Tom was easy to contact and super helpful .the kit prices were also priced right thanks Tom . DanMathew ElliotMathew Elliot ★★★★★ Tom at LTG was great to deal with! Prompt to respond to queries and great prices!John GoodallJohn Goodall ★★★★★ John CordellJohn Cordell ★★★★★ Tom was a bloody legend. I was a difficult customer as i am in NZ but he made it easy. The locker looks good, comes with good instructions, the loom looks quality. I recommend to any nz customers, we cant buy it online but just flick Tom a email and he will walk you through purchasing processes.Response from the ownerThanks John, we appreciate your feedback! Glad you are happy with the product. Get in touch if you need any other gear or advice. Kevin TurnerKevin Turner ★★★★☆ What a great job tom did for me, he knew exactly what he was doing ,a very knowledgeable man and great at his job highly recommend LTG 4 x 4keith wrightkeith wright ★★★★★ what a fantastic experience dealing with tom at 4x4 . this guy has the knowledge and top quality turbo kits to go with it . fast delivery , great product and the best customer service i’ve had in a long time . i will definitely be dealing with this company again . HIGHLY RECOMMENDED .Response from the ownerThank you Keith! Armand OttermannArmand Ottermann ★★★★★ Spoke to Tom over the phone about getting an exhaust done and he was very happy to answer any of my questions, once I had ordered my exhaust, it was built and delivered in record time as far as I'm concerned.The quality of the exhaust was just perfect, the fact the dump pipe came with a pre installed bung is just that icing on top of the cake.I could not recommend these guys enough, for sure gonna be one of my go to stores from now on.Response from the ownerThank you Armand, call us anytime you need any advice. Jenni ArmstrongJenni Armstrong ★★★★★ Brilliant workmanship on my stretched 100 series GVM upgrade to 3900 kg, while retaining 3500kg tow under break. An unexplainable amount of effort put in to get it completed on time. I can’t thank Tom enough. Highly recommendJohn ArmstrongResponse from the ownerIt's an absolute pleasure Jenni! Jamie KlemmJamie Klemm ★★★★★ Tom was so knowledgeable, efficient and bent over backwards to help us! We were really stuck without this upgrade and the paperwork, engineering information and everything was so organised! I highly recommend this business !Response from the ownerThank you Jamie, we appreciate you as a customer! js_loader

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