Skip to content
1977-1990 B-Body Crossmember
Made-in-usa-flag2.png__PID:a98f1e92-f6ea-4b9d-82b7-d6622091bb2e

1977-1990 B-Body Crossmember | RCB3-T56

by G Force Performance Products
SKU RCB3-T56
$485.00

Notify me when back in stock

Product Information

Description

  • Fits GM B-Body Models: Caprice, Impala, LeSabre, Oldsmobile 88,  Bonneville,  Parisienne,  Catalina.
  • Fits Years: 77-90
  • Fits Transmissions: T-56, T-56 Magnum, T-56XL, Magnum XL, TR6060
  • For a proper fit with these transmissions, the GF-GMATM Transmission Mount is included.

  • Fits GM B-Body Models: Caprice, Impala, LeSabre, Oldsmobile 88,  Bonneville,  Parisienne,  Catalina.
  • Fits Years: 77-90
  • Fits Transmissions: T-56, T-56 Magnum, T-56XL, Magnum XL, TR6060
  • For a proper fit with these transmissions, the GF-GMATM Transmission Mount is included.


G Force and our Partner Brands engineer bold solutions that make installation easier without sacrificing quality. Get more support from G Force.

DOWNLOAD INSRUCTIONS

Our engineers are also car enthusiasts—which makes designing automotive parts second nature. Because we use our products, we know the importance of crafting them with strength and durability. Get more performance from G Force.

LEARN MORE

Specifications

Weight: 37 lbs

Shipping Dimensions: 51 x 19 x 6 In

Finish: Black Powder Coated

Mounting Hardware: Included

See the G Force Crossmember Overview for more info.

This crossmember is installed with the G Force label facing the rear of the vehicle. However, another determining feature is the crossmember center tube which has a 1/2″ drain slot that is positioned on the bottom and on the passenger side next to the hump weldment.

This crossmember is installed so that the exhaust clearance humps are closed on the top and open on the bottom.

To use the provided 7/16″ hardware it is necessary to enlarge holes in your frame rails with a 1/2″ drill. If you choose to use the stock size 3/8″ hardware, it is strongly recommended to use new Grade #8 fasteners to compensate.

Discover more about the G Force Crossmember product line on these pages-

Customer Reviews

Based on 1 review
0%
(0)
100%
(1)
0%
(0)
0%
(0)
0%
(0)
L
Louie
78 LS Swap Impala RCB3-T56

I HIGHLY RECOMMEND G-Force Crossmember.
The crossmember installation was simple and flawless. Worked great for my LS Swap with the 4L60e.
The only reason I didn't give 5 stars, Poor packaging the crossmember was just put in the box without any bubble wrap, so when I got it, the box was ripped and the crossmember was scuffed up.

Thanks for your review. We're sorry to hear that you had an issue with the packaging. We'll pass along your experience to our shipping department. Someone from customer service will reach out to you privately.