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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.

AODE (4R70W)TRANS/BRONCO DANA 20 T/C

Ford AODE & 4R70W 4 speed automatic overdrive transmission to the 1966-77 Ford Bronco Dana 20 transfer case,adapter kit.
SKU: 50-2704E

$679.20
excluding shipping

C6 TO BRONCO DANA 20 T/C

Ford C6 3 speed automatic transmission to the 1966-77 Bronco Dana 20 transfer case,adapter.
SKU: 50-4301

$746.36
excluding shipping

NV3550-BRONCO DANA 20 KIT

NV3550 installation kit 1966-77 Ford Bronco
SKU: 27-3520AA

$1,039.88
excluding shipping

AMC 4.0L W/ NP231//DODGE 29SP

Adapts Dodge 29 Spline NV4500 to Jeep AMC Engine & Jeep NP231 Transfer Case.
SKU: 27-0012T

$1,187.86
excluding shipping

AOD 88 and UP/BRONCO II TC

Ford late AOD to Borg Warner 1350/1354 Adapter Kit
SKU: 50-8404

$623.70
excluding shipping

NV3550/DANA 300 AMC BLOCK KIT

NV3550 installation kit for the 1980-86 Jeep CJ7
SKU: 27-3531AA

$620.19
excluding shipping

DODGE H/D 29SPL/TOY L.C.10SPL

Dodge NV4500 4WD with 29 spline output shaft to the 1964-73 Toyota Landcruiser 10 spline transfer case adapter kit.
SKU: 50-0222

$709.06
excluding shipping

ALLISON 1000 (GM) 29 SPL. TO GM NP205

50-9421 - ALLISON 1000 Automatic Transmission to 1985-91 GM Round Bolt Pattern NP205 Transfer Case Adapter
SKU: 50-9421

$589.00
excluding shipping

6R140/10R140 TO 4X4 TO ATLAS

Ford 6R140 or 10R140 4WD to Atlas 43 spline input transfer case.
SKU: 50-6140

$472.50
excluding shipping

TOYOTA FJ CRUISER/TACOMA 05-14 AUTO/ATLAS

Toyota FJ Cruiser, Tacoma 05-2020 Auto Trans, 4 Runner 2003 to 2020 Auto Trans To Atlas transfer case Adapter Kit
SKU: 50-5716

$447.80
excluding shipping

DANA 300/GM V8 B/H KIT(D23)

Adapter package to mate the Dodge 23 spline NV4500 to the Jeep Dana 300 Transfercase & the GM small Block V8 engine.(full bellhousing kit)
SKU: 27-0001

$647.96 MSRP $762.30
excluding shipping

6L80/6L90 TO ATLAS ADAPTER

50-9600 - GM 6L80 & 6L90 Automatic Transmission to Atlas Transfer Case Adapter
SKU: 50-9600

$294.84
excluding shipping
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