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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.

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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436 products found.

MUNCIE X JEEP DANA 18/20-6 SPL

MUNCIE TO JEEP DANA 18/20 TRANSFER CASE
SKU: 50-0100

$724.50
excluding shipping

TH350 X TOYOTA P.U. 23 SPL

GM TH350 to Toyota truck 23 spline gear driven transfer case Adapter Kit
SKU: 50-5703

$619.48
excluding shipping

SCOUT TORQFLT X GM ENG. ADAP.

Scout TF727 Automatic Transmission to Pre 1986 GM V8 Adapter Kit
SKU: 712572-A

$470.23
excluding shipping

NV4500 TOY L/C 10SP SHORT STY

GM NV4500 4WD to Toyota Land Cruiser 10 spline transfer case adapter kit.
SKU: 50-0211

$709.06
excluding shipping

700R-4 X NP205 T/C(REPL.TH400)

GM 700R4 to GM NP205 Adapter Kit (replacing TH400)
SKU: 50-6902

$522.46
excluding shipping

C6 X JEEP DANA 18/20 6 SPLINE

Ford C6 3 speed automatic transmission to the Jeep Dana Spicer 18/20 transfer case (with 6 spline drive gear),adapter kit.
SKU: 50-3300

$709.06
excluding shipping

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

GM 4wd TH350 to Jeep NP231 Adapter Kit (Peugot 21 Spline)
SKU: 50-6306A

$573.30
excluding shipping

GM CIRCULAR 32 NP205-29SPL INPUT TO GM 6L90 29 SPL TRANS

GM 4WD 6L90E 6 Speed Automatic Transmissions to GM NP205 Circular 6 Transfer case.
SKU: 50-9552A

$730.80
excluding shipping

C4 X BRONCO II T/C (11.500 )

C4 X BRONCO II T/C (11.500")
SKU: 50-8401

$559.82
excluding shipping

T98/T18 JEEP 4SP X FORD V8

Ford V8 to Jeep T98 or T18 Transmission Adapter Kit
SKU: 712518

$485.16
excluding shipping

DODGE NV4500 BHSG OE REPLACEMENT W/ FORK and BALL

Dodge NV4500 Cummins 5.9L Diesel Bell Housing Kit
SKU: 712586A

$515.34
excluding shipping

AMC TRANS 21T X DANA 18/20

Jeep 21 Spline output shaft transmission to Jeep Dana 18/20 transfer case Adapter Kit
SKU: 50-8601

$522.46
excluding shipping
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