Skip to content

1977-1990 B-Body crossmember | RCB3-4L80

$380.00

Notify me when back in stock

Product Description

The G Force Patented Transmission Crossmember

Performance Engineered from Start to Finish

Performance
Engineered

Engineered and independently tested to withstand the rigors of the track, each crossmember exceeds the demands of even the most challenging roads.

Easy Installation.
It’s Foolproof!

Our unique bolt-to-frame design eliminates cutting and welding. The distinctive double-hump accommodates true dual exhaust. A G Force crossmember is guaranteed to be a perfect fit.

SHOPTALK

Customer Reviews

Based on 7 reviews
100%
(7)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
D
David

5 stars as it's built really well I bought it for a 1984 Cadillac Fleetwood coupe b body frames soposta be the same as a Caprice ECT frame and chassis wise even though I found out these isn't just going to bolt right in long angle iron on the driver side is to long to slide on top of the frame and make it worse doesn't appear bolts holes are differently not lining up and #1 worst part is it hits the factory drive shaft hoop and factory spot welded mounts for the hoop differently not allowing it to even come close sliding in luckily I haven't got power trains in yet but eventually I'll be seeing if it will work after modification if not all have really good tarp weight also the dual exhaust spots hit the floor I'm planning to run a single turbo ATM so kinda a haha on my part diffently not bolt om for 80-93 Cadillac brougham

We're glad you were happy with the quality. Good luck with your project.

J
Josh Wertz

1977-1990 B-Body crossmember | RCB3-4L80

Thanks for giving us 5 Stars!

A
Andy mills
83’ Buick LeSabre

This crossmember fit like a glove. I was going to fab one up, but I was worried about my angle for the driveshaft. This took all the guesswork out of it, and my 4l80e is sitting pretty. I would highly recommend this product, the welds look great, and it is very, very sturdy. I’m not a guy to write reviews normally, so that should tell you something. If you have a B body, just get this.

Thanks for taking the time to review this Crossmember. Glad you got a perfect fit!

E
Edward Black
86 caprice

Fit well an worked amazing..4l80e transmission with aftermarket exhaust.

M
Mack Anderson

I have a 86 Caprice classic it fits perfect with the 4L 80 transmission that I have

    Product Tags:
  • 1977-1990
  • 77 Buick LeSabre
  • 77 Chevrolet Caprice
  • 77 Chevrolet Impala
  • 77 Chevy Caprice
  • 77 Chevy Impala
  • 77 Olds 88
  • 77 Oldsmobile 88
  • 77 Pontiac Bonneville
  • 77 Pontiac Catalina
  • 77 Pontiac Parisienne
  • 78 Buick LeSabre
  • 78 Chevrolet Caprice
  • 78 Chevrolet Impala
  • 78 Chevy Caprice
  • 78 Chevy Impala
  • 78 Olds 88
  • 78 Oldsmobile 88
  • 78 Pontiac Bonneville
  • 78 Pontiac Catalina
  • 78 Pontiac Parisienne
  • 79 Buick LeSabre
  • 79 Chevrolet Caprice
  • 79 Chevrolet Impala
  • 79 Chevy Caprice
  • 79 Chevy Impala
  • 79 Olds 88
  • 79 Oldsmobile 88
  • 79 Pontiac Bonneville
  • 79 Pontiac Catalina
  • 79 Pontiac Parisienne
  • 80 Buick LeSabre
  • 80 Chevrolet Caprice
  • 80 Chevrolet Impala
  • 80 Chevy Caprice
  • 80 Chevy Impala
  • 80 Olds 88
  • 80 Oldsmobile 88
  • 80 Pontiac Bonneville
  • 80 Pontiac Catalina
  • 80 Pontiac Parisienne
  • 81 Buick LeSabre
  • 81 Chevrolet Caprice
  • 81 Chevrolet Impala
  • 81 Chevy Caprice
  • 81 Chevy Impala
  • 81 Olds 88
  • 81 Oldsmobile 88
  • 81 Pontiac Bonneville
  • 81 Pontiac Catalina
  • 81 Pontiac Parisienne
  • 82 Buick LeSabre
  • 82 Chevrolet Caprice
  • 82 Chevrolet Impala
  • 82 Chevy Caprice
  • 82 Chevy Impala
  • 82 Olds 88
  • 82 Oldsmobile 88
  • 82 Pontiac Bonneville
  • 82 Pontiac Catalina
  • 82 Pontiac Parisienne
  • 83 Buick LeSabre
  • 83 Chevrolet Caprice
  • 83 Chevrolet Impala
  • 83 Chevy Caprice
  • 83 Chevy Impala
  • 83 Olds 88
  • 83 Oldsmobile 88
  • 83 Pontiac Bonneville
  • 83 Pontiac Catalina
  • 83 Pontiac Parisienne
  • 84 Buick LeSabre
  • 84 Chevrolet Caprice
  • 84 Chevrolet Impala
  • 84 Chevy Caprice
  • 84 Chevy Impala
  • 84 Olds 88
  • 84 Oldsmobile 88
  • 84 Pontiac Bonneville
  • 84 Pontiac Catalina
  • 84 Pontiac Parisienne
  • 85 Buick LeSabre
  • 85 Chevrolet Caprice
  • 85 Chevrolet Impala
  • 85 Chevy Caprice
  • 85 Chevy Impala
  • 85 Olds 88
  • 85 Oldsmobile 88
  • 85 Pontiac Bonneville
  • 85 Pontiac Catalina
  • 85 Pontiac Parisienne
  • 86 Buick LeSabre
  • 86 Chevrolet Caprice
  • 86 Chevrolet Impala
  • 86 Chevy Caprice
  • 86 Chevy Impala
  • 86 Olds 88
  • 86 Oldsmobile 88
  • 86 Pontiac Bonneville
  • 86 Pontiac Catalina
  • 86 Pontiac Parisienne
  • 87 Buick LeSabre
  • 87 Chevrolet Caprice
  • 87 Chevrolet Impala
  • 87 Chevy Caprice
  • 87 Chevy Impala
  • 87 Olds 88
  • 87 Oldsmobile 88
  • 87 Pontiac Bonneville
  • 87 Pontiac Catalina
  • 87 Pontiac Parisienne
  • 88 Buick LeSabre
  • 88 Chevrolet Caprice
  • 88 Chevrolet Impala
  • 88 Chevy Caprice
  • 88 Chevy Impala
  • 88 Olds 88
  • 88 Oldsmobile 88
  • 88 Pontiac Bonneville
  • 88 Pontiac Catalina
  • 88 Pontiac Parisienne
  • 89 Buick LeSabre
  • 89 Chevrolet Caprice
  • 89 Chevrolet Impala
  • 89 Chevy Caprice
  • 89 Chevy Impala
  • 89 Olds 88
  • 89 Oldsmobile 88
  • 89 Pontiac Bonneville
  • 89 Pontiac Catalina
  • 89 Pontiac Parisienne
  • 90 Buick LeSabre
  • 90 Chevrolet Caprice
  • 90 Chevrolet Impala
  • 90 Chevy Caprice
  • 90 Chevy Impala
  • 90 Olds 88
  • 90 Oldsmobile 88
  • 90 Pontiac Bonneville
  • 90 Pontiac Catalina
  • 90 Pontiac Parisienne
  • all
  • B-Body
  • bbody
  • Buick
  • caprice crossmember
  • chevrolet
  • chevy
  • cross member
  • cross member frame
  • crossmember
  • crossmember bar
  • crossmember car
  • crossmember frame
  • Crossmember Menu
  • g force
  • g force performance
  • gforce
  • gforce performance
  • gforce performance products
  • gid://shopify/Collection/411467120894
  • GM-4
  • GMTM
  • Make_Buick
  • Make_Chevrolet
  • Make_Oldsmobile
  • Make_Pontiac
  • Model_Bonneville
  • Model_Caprice
  • Model_Catalina
  • Model_Impala
  • Model_Le Sabre
  • Model_LeSabre
  • Model_Oldsmobile 88
  • Model_Parisienne
  • olds
  • Olds 88
  • Oldsmobile
  • Pontiac
  • rcb3
  • rcb3 4l80
  • rcb34l80
  • transmission cross member
  • transmission crossmember
  • Transmission_4L80E
  • Transmission_4L85E
  • Year_1977
  • Year_1978
  • Year_1979
  • Year_1980
  • Year_1981
  • Year_1982
  • Year_1983
  • Year_1984
  • Year_1985
  • Year_1986
  • Year_1987
  • Year_1988
  • Year_1989
  • Year_1990