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Drivetrain, Transmission, Differential, Etc.

Your engine and how much power it makes is entirely useless without having a way to put that power to the ground! These important parts determine how quickly you get up to speed, how much traction you have, and how well it all holds together. In our opinion, one of the most important and engaging parts most enthusiast/driver's cars should have is a manual transmission. Many of the best engines out there today are not offered with one from the factory, so we step in and offer solutions!  

Simply put, the transmission's job is to keep the car as much in the engine's RPM powerband as possible throughout any speed. The differential then splits this power to the drive wheels.

There are many different ways this is done on various cars, between FWD (front wheel drive, transverse mounted sideways engine typically, no driveshaft, more compact, mostly self contained differential/transmission combo), RWD (rear wheel drive, longitudinal mounted engine, usually followed by transmission, driveshaft, differential to split the power to the drive wheels), and AWD/4WD, which pushes power to all 4 wheels in very different ways.

You can think of the drivetrain as the legs of the car. They're important for heavy lifting and (of course) going fast. Their most important job is to hold up the rest of the build and stay together. XAT has been ahead of the curve with bringing affordable but strong drivetrain options to keep the power at the ground, and not using it to rip itself apart!

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  • GKTech Shifter for CD009/JK Series Nissan 6 Speed Transmission

    The V2 GKTECH Z33/Z34 transmission shifter relocation setup has been designed as a bolt on solution when fitting these transmissions to S and R chassis Nissans (although may fit others) and not having the shifter sit back 6" too far. Our shifter setup sits just 85mm (3-11/32") from the rear of the bolt holes on the back of the transmission. 

    Designed from scratch with over 200 hours spent modelling, prototyping and testing we are happy with the final result. This design DOES feature reverse lockout.


    - CAD designed
    - No OEM parts required to fit this to the rear of a Z33/Z34 transmission
    - Features reverse lockout
    - Shifter sits just 85mm from the rear of the bolt holes on the back of the transmission
    - Thread for shifter is M10x1.25 (same as S13/S14 SR20 Nissan and many others)

    NOTE: Does require cutting of the rear selector shaft (very easy to do with a hack saw blade or cutting disk)
    NOTE #2: Will not work with transmission yokes larger than the OEM Z33 yoke at 90mm in outside diameter.

    Does this shifter have reverse lockout??
    Yes, it was easier to make a version without it however after racing without the reverse lockout I quickly discovered the need for it. 

    Will this suit a Z34 transmission?
    We have now test fit on a Z34 transmission and can confirm it fits.

    Will this suit a Z32 transmission?
    No the Z32 transmissions are completly different to the Z33/Z34 and they won't work at all.

    Are any other parts required to get this shifter to work?
    None of the OEM shifter related parts are required. Everything needed to install the shifter on to the transmission is required. 

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    • $460

  • 80 series Rear Differential Lock Actuator OEM Toyota Land Cruiser

    After 25+ years of off-roading, mud, dirt, grime, sand, rust, road salts, etc., you may be having issues with your factory triple locked Land Cruiser or LX450 engaging the electronic e-lockers. Fortunately these are still available OEM new, without paying $875+ for the Toyota box! We only use OEM Toyota parts for anything and everything where we can, as nobody built a better 80 series than Toyota themselves!

    You'll need to check your truck to see what the specific issue is, as replacing this alone might not fix your locking issue.

    Please contact us for availability, rarely more than 3-5 days for this to ship out.

    Please note that if you do NOT have a triple locked K294 axle code Land Cruiser, you will need much more than this to convert your diffs using factory parts. You would have to hunt down the rest of the parts including all of the axle hardware, the wiring, the switch, etc. We do not have a source for those parts.

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    • $588.95

  • OEM Toyota 80 series Land Cruiser Differential Lock Knob Triple Locked Diff Switch

    Is your triple lock knob getting crunchy, yucky, or just worn out? Good news, these are still available new, and quite affordable! Ours has seen better days, so we decided to replace it with a new one. Very easy, simple, straightforward replacement.

    Or, you could always just put one in a truck to replace the blanking plate, to make you feel better, or try to fool someone else into thinking you have a triple locked truck.

    Please note that if you do NOT have a triple locked K294 axle code Land Cruiser, you will need much more than this to convert your diffs using factory parts. You would have to hunt down the rest of the parts including all of the axle hardware, the wiring, the switch, etc. We do not have a source for those parts.

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    • $59.80

  • ATS carbon LSD for SC300/400 SC430 GS300 GS400 GS430 Supra MK4 LS400 LS430

    When looking for a Limited Slip Differential  XAT Racing always goes with Active Tracking Service - better known as ATS or even carbonetics.  These LSD kits are available in 1.5 way or 2 way operation. Silent when taking tight corners so none of the metal on metal CLUNK CLUNK of many of the other brands of LSD kits.  


    These kits ship directly from Japan -  So please expect a shipping rate of about 165 dollars on average to the lower 48 states. We can ship worldwide as well on these.


    By utilizing the CC composite discs, the ATS carbon LSD posses the superior transitional characteristics from free to differential lock, enabling control that feels quite natural.

    Principal characteristics of the Carbon LSD

    * Gentle transitional characteristics that yield ease of handling from free to lock
    * Small degree of slipping which provide a greater flexibility
    * Super durable
    * Stable differential lock performance which is unaffected by oil temperature changes
    * Quiet operation without chattering noise
    * Very high adaptability to many LSD oils from different manufacturers

    Important - it is very important to monitor the differential oil temperature to keep it under 150 C degree (302 F). Continued driving with the differential temperature above that point might cause the carbon chips peeled off.

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    • $1,695

  • ATS carbon LSD for IS300 JZX100 JZS155 A70 Supra


    When looking for a Limited Slip Differential  XAT Racing always goes with Active Tracking Service - better known as ATS or even carbonetics.  These LSD kits are available in 1.5 way or 2 way operation. Silent when taking tight corners so none of the metal on metal CLUNK CLUNK of many of the other brands of LSD kits.  


    These kits ship directly from Japan -  So please expect a shipping rate of about 165 dollars on average to the lower 48 states. We can ship worldwide as well on these.


    By utilizing the CC composite discs, the ATS carbon LSD posses the superior transitional characteristics from free to differential lock, enabling control that feels quite natural.

    Principal characteristics of the Carbon LSD

    * Gentle transitional characteristics that yield ease of handling from free to lock
    * Small degree of slipping which provide a greater flexibility
    * Super durable
    * Stable differential lock performance which is unaffected by oil temperature changes
    * Quiet operation without chattering noise
    * Very high adaptability to many LSD oils from different manufacturers

    Important - it is very important to monitor the differential oil temperature to keep it under 150 C degree (302 F). Continued driving with the differential temperature above that point might cause the carbon chips peeled off.

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    Vehicle Specific
    • $1,695

  • ARB Differential Breather Kit Tacoma Tundra 4Runner FJ Cruiser

    Includes Manifold, 4 Ports To Connect Up To 4 Breather Lines, Air Filter Port, Air Filter Assy, Push In Fittings, Plugs, Tubing, Screws, Cable Ties

    A differential/axle breather serves the important purpose on a 4WD vehicle of venting the air pressure in drivetrain assemblies such as the differential, transmission and transfer cases. Many drivetrain assemblies are fitted with a breather from the factory. These factory breathers are usually a one-way valve mounted directly to the housing or remotely on a short tube. There are many short comings to this style and the ARB Differential Breather Kit is designed to eliminate these by providing a high flow, zero back pressure, zero vacuum breather system. The kit is intended to replace your factory breathers and contains enough fittings and tubing to connect at least two drivetrain assemblies. More tubing and push-in fittings can be purchased separately to connect up to four assemblies to the central manifold.  

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    • $82

  • Rebuild kit for W58 Transmission Mk3 Supra Mk2 Supra MX73 Cressida

    Rebuild your older W58 with all OEM quality parts! Includes seals, bearings, and synchros. Typically ships in about 1 week.

    Please note that this kit is specific to the early W58 transmissions with one piece synchros. This will not fit the MkIV Supra/SC/IS300 etc. version with updated synchros. 

    If you're uncertain about fitment, you can reach out to us via email or phone to verify!

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    Vehicle Specific
    • $339

  • GM AR5 Solstice Sky Trans Output Flange Adapter

    This adapter was designed for the Solstice/Sky AR5 transmission to be able to use a much stronger drive shaft with 1310 or 1350 u-joints, rather then the stock GM CV joint. Includes bolts needed for the transmission flange and the drive shaft flange. The 4 bolt flange pattern is for a 1350 size GM flange yoke.

    We can build you a custom driveshaft to use an AR-5 transmission with this adapter in ANY vehicle.

    This adapter fits the Dana Spicer 1350 series 3-2-119 flange, or the 1310 series 2-2-479 flange. Typically takes about 1 week to ship.

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    Regular Product
    • $159.95

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