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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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GM SM465 2WD/JEEP 23T NP231 TC

GM SM465 2WD transmission to Jeep NP231

$566.48
excluding shipping
50-9812

T18 X TOYOTA TRK 23 TOOTH

Ford T18 to Toyota truck 23 spline Adapter Kit

$588.58
excluding shipping
50-5802

JEEP T18 X JEEP DANA 300-23SPL

Jeep T18 to Dana 300 or 23 spline NP231 Adapter Kit

$544.43
excluding shipping
50-7502

DODGE 29 TRANS / LANDROVER T/C

DODGE 29 SPLINE TRANSMISSION TO LANDROVER T/C

$515.00
excluding shipping
50-9001

MUNCIE 4SP X JEEP DANA 300

GM Muncie M21 & M22 to Dana 300 transfer case Adapter Kit

$625.35
excluding shipping
50-6000

FORD T18 X JEEP DANA 300-23SPL

Ford T18 to Jeep Dana 300 Adapter Kit

$544.43
excluding shipping
50-7500

700R-4 / 4L60 X TOYOTA L/C-HF2A T/C

700R-4 / 4L60 X TOYOTA L/C-HF2A T/C

$1,389.13
excluding shipping
50-8904A

TH350 X JEEP DANA 18/20 10SPL

GM TH350 3 speed, 4wd automatic transmission to the Jeep / Scout Dana 18 & 20 transfer case (with 6 spline drive gear) adapter kit. (Replaceing Jeep T14 Transmission)

$515.00
excluding shipping
50-3101

SPACER-TAIL SHAFT L/C

SPACER-TAIL SHAFT L/C
$241.40
excluding shipping
6245-007

AOD 83-87 X BRONCO II (A4LD)

Ford early AOD to Borg Warner 1350/1354 Adapter Kit (when replacing A4LD)

$614.79
excluding shipping
50-8403

C6 TO BRONCO DANA 20 T/C

Ford C6 3 speed automatic transmission to the 1966-77 Bronco Dana 20 transfer case,adapter.

$735.70
excluding shipping
50-4301

JEEP T-90 3SP TO FORD V8 KIT

T90 Transmission to Ford Small Block V8 Engine Adapter

$294.29
excluding shipping
712505
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