RCB3-700 THM700-R4/4L60/MD8 Transmission Crossmember for 1977-1990 GM B-Body

Name: RCB3-700 THM700-R4/4L60/MD8 Transmission Crossmember for 1977-1990 GM B-Body
Brand: G FORCE PERFORMANCE PRODUCTS
SKU: 472-RCB3-700
Price: 395.00 USD
Availability: InStock

^$395⁰⁰

Ships on Sep 03, 2026

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GM B-Body

THM700-R4/4L60/MD8 Transmission Crossmember

For 1977-1990 GM B-Body

G Force Performance RCB3-700 Features:

Fits Models: Caprice, Impala, LeSabre, Oldsmobile 88, Bonneville, Parisienne, Catalina
Fits Years: 77-90
Fits Transmissions: 700R4, 4L60, Pre-1996 4L60E, TKO-500, TKO-600, TKX.
This crossmember will fit 1996 and later 4L60E, and 4L65E transmissions for LS engine swaps.
The RCB3-700 is designed for the 700R4 / 4l60E transmission with a case mount transmission mount. For a 700R4 with a tailshaft mount purchase the RCB3-400 crossmember instead.
Engineered with 2 mounting slots to accept a standard height transmission mount.
G Force recommend a polyurethane transmission mount. The GMTM is sold separately.

Part TypeTransmission Crossmember

BrandG FORCE PERFORMANCE PRODUCTS

Package Height7.0

Package Width11.0

Package Length53.0

Weight32.0 PG

Part CategoryPerformance Parts

Part FitmentDirect Fit

Vendor Part NumberRCB3-700

Package Qty1

Package TypeEA

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