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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.

FORD 4WD P.U/NV KIT(D29)

Replacing Ford Fullsize T18, T19, NP435 4 Speed Manual Transmission & NP205 with Dodge 29 Spline NV4500
SKU: 27-0040T

Starting at $75/mo with . Check your purchasing power

$828.39
excluding shipping

DODGE NV4500 TO JEEP/T176 BHSG

Dodge NV4500 to Jeep 258 & V8 Bellhousing Adapter plate Kit
SKU: 712553

Starting at $27/mo with . Check your purchasing power

$294.84
excluding shipping

JEEP ENG.BHSG X GM TRANS 4.686

Jeep / AMC 6 cyl & V8 to the GM SM420 truck 4 speed, adapter bellhousing kit.
SKU: 712570

Starting at $40/mo with . Check your purchasing power

$440.37
excluding shipping

4WD TH400 X FORD 31 SP. TC NP205 208 B/W

GM TH400 3 speed automatic transmission to the Ford NP205 / NP208, B/W 1356 transfer case,adapter kit.
SKU: 50-3206

Starting at $54/mo with . Check your purchasing power

$591.19
excluding shipping

JEEP ENG.BHSG X JEEP TRANS.

Jeep Wrangler 4.0L to Jeep CJ7 series transmission (T-4, T-5, T-150,T-176) adapter bellhousing kit.
SKU: 712569

Starting at $40/mo with . Check your purchasing power

$440.37
excluding shipping

GM V8 W/ NP231 TO DODGE 23SPL

Adapts Dodge 23 Spline NV4500 to Chevy V8 small Block & Jeep NP231 Transfer Case.
SKU: 27-0011

Starting at $99/mo with . Check your purchasing power

$1,087.82
excluding shipping

JEEP AX5/GM or BUICK BHSG

Chevy 350 & 4.3 V6 to Jeep Wrangler AX5 5 speed adapter bellhousing kit.
SKU: 712565

Starting at $45/mo with . Check your purchasing power

$492.60
excluding shipping

COUPLER-29 SPLINE NP205 TO GETRAG

COUPLER-29 SPLINE NP205 TO GETRAG
SKU: 52-9540

Starting at $17/mo with . Check your purchasing power

$94.50
excluding shipping

29T NP231 T/C INPUT 1995 and earlier

Jeep NP231 29 spline Input gear
SKU: 50-0231

Starting at $21/mo with . Check your purchasing power

$223.90
excluding shipping

SM420 X JEEP DANA 18/20-6 SPL

GM SM 420 4 speed manual transmission to the Jeep Dana 18 / 20 with 6 spline drive gear, (spud shaft design adapter kit).
SKU: 50-2401

Starting at $52/mo with . Check your purchasing power

$574.69
excluding shipping

C4 X TOYOTA L/C 10 SPLINE

Ford C4 to Toyota Land Cruiser 10 SplineAdapter Kit
SKU: 50-8200

Starting at $68/mo with . Check your purchasing power

$746.36
excluding shipping

ALL NV4500 5SP X DANA 300

GM NV4500 2WD/4WD to Jeep Dana 300 transfer case adapter kit.
SKU: 50-0205

Starting at $50/mo with . Check your purchasing power

$544.95
excluding shipping
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