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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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NEW VENTURE 4500/CHEVY BHSG

Chevy V8 & V6 engine to the 1993-95 GM NV4500 5 speed, adapter bellhousing kit.

$453.60
excluding shipping

GEN-3 VORTEC MANUAL TRANS KIT LUK CLUTCH

Flywheel and Clutch kit for LS-Series / Gen 3 engines

$740.00
excluding shipping

4L60E X GM 27 SPLINE NP205 TC

GM 4L60E ADAPTER TO GM NP205 27 SPLINE

$806.08
excluding shipping

STOCK GM TH350-NP205

GM NP205 Stock replacement adapter housing for TH350 transmissions.

$298.56
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

$589.00
excluding shipping

1.5 TH350/700R ATLAS ADAPTER

TH350/700R TO ATLAS ADAPTER

$223.90
excluding shipping

700R-4 SHORT 4WD OUTPUT SHAFT

GM 700R4/4L60E output shaft kit to GM NP205 & NP203 transfer case. (replacing TH350)

$195.93
excluding shipping

GM 4L80 2WD 4SP X NP205 71-84 fig 8 TC

GM 4L80E 2WD to GM NP205 transfer case,adapter kit. (replacing TH350 or SM465)

$704.02
excluding shipping

50-5304 - TH350 X NP205 10SPL. COUPLER

Hybrid coupler sleeve for GM NP205 transfer case. Coupler has 27 spline transmission to 10 Spline Transfer Case

$167.96
excluding shipping

4L60E HEX PATTERN/NP231 23T

1997 to current GM 4L60E / 4L65E 4 speed automatic transmission to the Jeep NP231 transfer case with 23 spline input shaft, adapter kit.

$586.66
excluding shipping

4L60E HEX PATTERN TO ATLAS ADAPTER

4L60E HEX PATTERN TO ATLAS ADAPTER KIT

$551.25
excluding shipping

TOY.TACOMA 23SP TRANS/ATLAS TC

Toyota Tacoma Tranmission to Atlas transfer case Adapter Kit (23 spline)

$410.51
excluding shipping
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