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1977-1990 B-Body Crossmember | RCB3-400

$370.00
SKU RCB3-400

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  • Fits Models: Caprice, Impala, Biscayne, Electra, Le Sabre, Catalina, Bonneville, Delta 88, Starfire, Delmont, Custom Cruiser, Estate Wagon, Parisienne, Riviera, Safari
  • Fits Years: 77-90
  • Fits Transmissions: TH400 Short Tail, 2004R, 700R4 with B-Body tailshaft Mount
  • For Classic B-Body builders, we've designed a direct bolt-in transmission crossmember to accommodate both a 2004R or TH400 short tail transmissions, as well as a 700R4 with the tailshaft transmission mount.  One crossmember, both transmissions!  
  • We accommodate both by using a second set of mounting holes on the crossmember which allows you to position the crossmember in two different locations while still using the factory crossmember mounting locations. 
  • No drilling, cutting, grinding, or welding is required.  
  • When considering the popular 700R4, there are two basic transmission mount locations. One version utilizes a transmission mount directly behind the transmission pan on the transmission case. With the other version the transmission mount is located further forward and bolts to the tailshaft housing. It is crucial that you properly determine which mount location your 700R4 uses. The RCB3-400 is designed to accommodate the longer tailshaft mount. If you have the shorter case mount transmission, you will need to purchase our RCB3-700 crossmember.
  • We recommend a polyurethane transmission mount. The GMTM is sold separately.

Customer Reviews

Based on 1 review
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C
Christian Marquette
Th400 crossmember

Great quality truly a bolt in part went right in nice and easily as expected. One question I have is does this crossmember require shims at trans mount to get driveline angles right. I have noticed some high speed vibration any tips will be appreciated

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 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
C
Christian Marquette
Th400 crossmember

Great quality truly a bolt in part went right in nice and easily as expected. One question I have is does this crossmember require shims at trans mount to get driveline angles right. I have noticed some high speed vibration any tips will be appreciated

    Product Tags:
  • 1977-1990
  • 2004r crossmember
  • all
  • B-Body
  • bbody
  • Buick
  • caprice crossmember
  • chevrolet
  • chevy
  • cross member
  • cross member frame
  • crossmember
  • crossmember bar
  • crossmember car
  • crossmember frame
  • g force
  • g force performance
  • gforce
  • gforce performance
  • Make_Buick
  • Make_Chevrolet
  • Make_Oldsmobile
  • Make_Pontiac
  • Model_Biscayne
  • Model_Bonneville
  • Model_Caprice
  • Model_Catalina
  • Model_Custom Cruiser
  • Model_Delmont
  • Model_Delta 88
  • Model_Electra
  • Model_Estate Wagon
  • Model_Impala
  • Model_Le Sabre
  • Model_Parisienne
  • Model_Riviera
  • Model_Safari
  • Model_Starfire
  • olds
  • Oldsmobile
  • Part Type_Crossmembers
  • Platform_B-body
  • Pontiac
  • rcb3
  • RCB3-400
  • rcb3400
  • transmission cross member
  • transmission crossmember
  • Transmission Group_GM-3
  • Transmission_2004R
  • Transmission_700R4 with B-body Tailshaft Mount
  • Transmission_TH400 Short Tail
  • 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