Drivetrain› Bellhousings and Components

GForce

8HP to GM Universal Transmission Mount Adapter

$139.99

SKU: GF-RC8HP-GM-A

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The GForce 8HP to GM Universal Transmission Mount Adapter is designed to allow the use of a GM-style transmission mount on an 8HP70 transmission. It is intended for use when swapping an 8HP transmission into a vehicle that requires a GM-style mount. This adapter is compatible with Car 8hp70 and NAG1 6-speed transmissions. It features a durable black powder coat finish.
Show original supplier description
The GForce 8HP to GM Universal Transmission Mount Adapter facilitates the integration of a GM-style transmission mount with the popular 8HP70 transmission. This adapter is specifically engineered for vehicle swaps where an 8HP transmission is being installed and a GM-style mount is necessary, referencing G Force part numbers like GMTM, GMTM-S, and GMTM-LP. This mount adapter is designed to work with Car 8hp70 transmissions and is also compatible with NAG1 6-speed transmissions. Its application ensures a smooth installation process, especially when paired with G Force Crossmembers, simplifying the overall drivetrain setup. The adapter is finished with a durable black powder coat for longevity and a clean aesthetic. Specifications include a weight of 4 lbs and shipping dimensions of 10 x 10 x 10 inches. Please note that mounting hardware is not included with this adapter, and will need to be sourced separately.

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

BrandGForce
Part NumberGF-RC8HP-GM-A
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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