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Drivetrain› 4x4 Driveline Components

Advance Adapters

TH350 to NP205 Transfer Case Adapter Housing

$326.45 $270.00 Save $56.45

SKU: 505302

Special Order
Special Order
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Advance Adapters 50-5302 is a stock replacement adapter housing designed for GM TH350 transmissions and NP205 transfer cases. This adapter is a re-manufactured part, created due to the scarcity of original GM replacement components. It was originally used on GM 4WD trucks from 1971-1979, enabling the connection between a TH350 automatic transmission and an NP205 cast iron, part-time transfer case.
The kit includes the TH350 to NP205 replacement adapter, seals, an o-ring, and an NP205 gasket, along with adapter instructions.
Show original supplier description
The Advance Adapters STOCK GM TH350-NP205 adapter housing (SKU: 50-5302) serves as a re-manufactured replacement part for components that are increasingly difficult to find from original GM sources or in salvage yards. This adapter is specifically designed for use with GM TH350 automatic transmissions and the NP205 cast iron, part-time transfer case. It was originally utilized on GM 4WD trucks manufactured between 1971 and 1979, facilitating a direct connection between these two driveline components. The comprehensive kit includes the necessary TH350 to NP205 replacement adapter, along with essential seals, an o-ring, and an NP205 gasket. Adapter instructions are also provided to guide installation. This product ensures the continued functionality and compatibility of your vehicle's transfer case system with its original transmission.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAdvance Adapters
Part Number505302
CategoryDrivetrain
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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