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Four-Wheel Drive Adapters

Repairing, restoring and customizing a 4WD vehicle is always easier with the right adapters. If you’re using components that didn’t come stock with a truck or SUV, adapters are necessary to connect them to the OEM parts — or other aftermarket upgrades. Since 1971, Advance Adapters has been developing quality conversion products made in the U.S. Shop hundreds of 4WD adapters for Jeeps, Fords, Chevys and other popular off-road vehicles.

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Off-Road Adapter Kits

We offer 4WD adapter kits and parts for almost any DIYU project. Use transmission-to-transfer case adapters and engine-to-transmission adapters to mate a variety of popular components, such as connecting a GM TH350 transmission to a Jeep Dana 300 transfer case. Our team has also put together 4WD conversion packages that include the hardware and accessories needed to install new transmissions. With retrofit kits, you can add an AX15, NV4500, NV3550 and other transmissions to your existing engine while utilizing the available space.

4WD Adapter Hardware

If a part has failed within your current conversion, you don’t need to replace the entire assembly. Individual hardware and accessories are available to fix your custom vehicle at a fraction of the price. Shop spline outputs and inputs, couplers, gears, seals and other components made of premium materials. Some of these parts also can be used to r fine-tune your setup for the right amount of power and torque. Use the search options to find adapters that fit your goals or call to speed with a four-wheel drive expert. We provide leading customer service to support our leading conversion products.

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SM420 X TOYOTA L/C 10 SPLINE

GM SM420 4 speed manual transmission to the1973-80 Land Cruiser 10 Spline transfer case,adapter kit.

$559.82
excluding shipping
50-2601

700R TO SCOUT DANA 300 T/C

GM 700R4 to Scout Dana 300 Adapter Kit

$783.72
excluding shipping
50-6907

SM420 X TOYOTA L/C 16 SPLINE

GM SM420 4 speed manual transmission to the1974-80 Land Cruiser 16 Spline transfer case,adapter kit.

$559.82
excluding shipping
50-2602

T98 X DANA 300 T/C

Jeep T98 to Dana 300 or 23 Spline NP231 Adapter Kit

$552.32
excluding shipping
50-7503

TH400 X TOYOTA L/C 16 SPLINE

GM TH400 3 speed automatic transmission to the 1974-80 Land Cruiser 16 spline transfer case,adapter kit.

$662.17
excluding shipping
50-1600

TH350 2WD X JEEP NP231 95 &UP

GM 2WD TH350 to New Process 231 spline transfer case 1995 & NEWER Adapter kit (1.5 long)

$598.50
excluding shipping
50-6802

TH350 X TOYOTA L/C 16 SPLINE

GM TH350 to Toyota Land Cruiser 16 spline transfer case Adapter Kit

$598.50
excluding shipping
50-7400

700R-4 X JEEP NP231 23T (AX15)

GM 700R4 to Jeep NP231 Adapter Kit (replacing AX15)

$522.46
excluding shipping
50-9102

SM420 X JEEP DANA 300 & NP231 T/C

GM Sm420 Adapter to Jeep Dana & Jeep NP231 with 23 spline input.

$559.82
excluding shipping
50-9702

NP435/TOYOTA TRK 21 TOOTH

Ford NP435 to Toyota truck 21 Spline Adapter Kit

$597.11
excluding shipping
50-5804

4L80E /TOY L/C-HF2A T/C

GM 4L80E to Toyota Land Cruiser HF2A Adapter Kit

$1,509.60
excluding shipping
50-1702

TH350/NP231-21T upgrading to 87-95 23 spl.

GM 4wd TH350 to Jeep NP231 Adapter Kit (Peugot 21 Spline)

$573.30
excluding shipping
50-6306
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