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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 NP205-32SPL INPUT TO FIT GM 6L80 32 SPL TRANS

 GM 4WD 6L80E / 6L90E 6 Speed Automatic Transmissions to Ford NP205 Transfer case.
SKU: 50-9550B

Starting at $66/mo with . Check your purchasing power

$730.80
excluding shipping

4L80E 4WD TO GM NP205 CIR 6 LONG INPUT

GM 4L80E 4WD to GM NP205 LONG INPUT Circular 6 bolt pattern
SKU: 50-6912

Starting at $22/mo with . Check your purchasing power

$233.10
excluding shipping

TH350 2WD X JEEP NP231 1987-94

GM 2WD TH350 to Jeep NP231 1987-94
SKU: 50-6801

Starting at $55/mo with . Check your purchasing power

$598.50
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.
SKU: 50-0430

Starting at $53/mo with . Check your purchasing power

$586.66
excluding shipping

ADAPTER- GM NV4500, CAST IRON

ADAPTER- GM NV4500, CAST IRON
SKU: 51-0204

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

$223.20
excluding shipping

JEEP T18 X JEEP DANA 300-23SPL

Jeep T18 to Dana 300 or 23 spline NP231 Adapter Kit
SKU: 50-7502

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

$552.32
excluding shipping

4L60E 27 SP. X GM 10 SPLINE NP205 TC

GM 4L60E ADAPTER TO GM NP205 10 SPLINE
SKU: 50-5311

Starting at $73/mo with . Check your purchasing power

$806.08
excluding shipping

JEEP AX15/NV3550 TO GM or BUICK BHSG

Chevy V8 & V6 to Jeep Wrangler AX15, adapter bellhousing kit.
SKU: 712567

Starting at $46/mo with . Check your purchasing power

$507.40
excluding shipping

SM465 X JEEP 18/20 6SPL SHORT

GM SM465 4 Speed Transmission to Jeep Dana 18 or 20 Transfer Case Adapters
SKU: 50-4703

Starting at $55/mo with . Check your purchasing power

$604.80
excluding shipping

4L60E X GM 27 SPLINE NP205 TC

GM 4L60E ADAPTER TO GM NP205 27 SPLINE
SKU: 50-5310

Starting at $73/mo with . Check your purchasing power

$806.08
excluding shipping

ALLISON 1000 (GM) 29 SPL. TO FORD NP205

50-9422 - ALLISON 1000 Automatic Transmission to FORD NP205 Transfer Case Adapter
SKU: 50-9422

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

$589.00
excluding shipping

GM SM465/GM NP 205 FIG 8 PATTE

SM465 to early GM NP205 fig. eight bolt pattern
SKU: 50-4708

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

$298.56
excluding shipping
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