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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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AMC TRANS 21T X DANA 18/20

Jeep 21 Spline output shaft transmission to Jeep Dana 18/20 transfer case Adapter Kit

$522.46
excluding shipping
50-8601

TOYOTA L/C 3SP-CHEVY V8 KIT

Land Cruiser stock 3spd to Chevy V8 adapter kit

$657.72
excluding shipping
713028-EK

TOYOTA L/C 4SP TO CHEVY LS GEN3

Land Cruiser stock 4spd to Chevy LS Engine Conversion kit

$1,633.92
excluding shipping
713026-EK

MARKS- LS (GEN3) V8 TO R/R 4&5 SPEED MANUAL

MARKS- LS (GEN3) V8 TO Rover 4&5 SPEED MANUAL

$1,043.70
excluding shipping
6245-017

GM NV4500 TO JEEP DANA 20 TC

GM NV4500 4WD to Jeep Dana 20 transfer case adapter kit.

$634.41
excluding shipping
50-0210

700R-4 X JEEP NP231 21 spl upgrading to 95 and newer 23 spl

700R-4 X JEEP NP231 21 spl upgrading to 95 & newer 23 spl

$522.46
excluding shipping
50-9103A

700R-4 X NP205 10SPL COUPLER

 700R-4 to NP205 10 SPLINE NP205

$298.56
excluding shipping
50-6906

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

Replacing Ford Fullsize T18, T19, NP435 4 Speed Manual Transmission & NP205 with Dodge 29 Spline NV4500

$828.39
excluding shipping
27-0040T

DODGE NV4500 TO JEEP/T176 BHSG

Dodge NV4500 to Jeep 258 & V8 Bellhousing Adapter plate Kit

$294.84
excluding shipping
712553

JEEP ENG.BHSG X GM TRANS 4.686

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

$440.37
excluding shipping
712570

YJ V8 WITH A AX15 5 SPEED 10.5 FLYWHEEL

YJ V8 WITH A AX15 5 SPEED

$1,444.36
excluding shipping
CP-YJ002

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.

$591.19
excluding shipping
50-3206
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