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G Force 1978-1983 Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal Crossmember - 400K w/ Frame Extension

Transmission Crossmember, Bolt-On, Steel, Black Powder Coat, Frame Extension Included, TH400 Transmissions, GM G-Body 1978-88
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Shipping: Oversized / Overweight Item! Ships from Michigan.
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Fits the following transmissions: TH400, 2004R (note: includes the fE-100 frame extension.) Finished in a black powder coat. Includes new mounting hardware. Purchase transmission mount separately. p/n GMTM.

p/n RCG-400K installation notes:

  • on all 78-88 G body crossmembers, the passenger side hump is the taller of the two.
  • On some installations, it is necessary to remove the catalytic converter heat shield from the passenger side floor pan.
  • This generation of vehicle is prone to body bushing compression, even with some southern vehicles. If the floor pan is too close to allow installation, it may be necessary to replace the body bushings. Some customers have reported that with slight interference instances, they have been able to gently lift the floor pan with the assist of a floor jack and a wood cushion, thus providing the required clearance for installation.
  • The crossmember is installed so that the exhaust clearance humps are closed on the top and open on the bottom.
  • The primary frame change on this generation of vehicles is beginning with 1984 models and the implementation of the 2004R transmission which required positioning the crossmember further to the rear of the vehicle. This is evidenced by 2 sets of frame holes for the crossmember on the driver side of the vehicle. G force has developed the frame extension (p/n FE1-00) to duplicate this longer frame on the early generation vehicles. RCG-400k is pre-packaged with the frame extension. Note: while this change was platform wide beginning in 1984, some 1983 Hurst Olds are known to have the 2004R transmission and thus the longer frame rail.
  • 1978, 1979, 1980, 1981, 1982, 1983 Monte Carlo, Cutlass, Malibu, EL Camino, Regal, GS, Grand Prix.

    TH400, 2004R, 200r4

    Additional Information

  • Weight: 34 lbs
  • Dimensions: 6 x 11 x 51 in
  • Buick Models: Regal
  • Oldsmobile Models: Cutlass
  • Pontiac Models: Grand Prix
  • Chevy Models: El Camino, Malibu, Monte Carlo
  • Product Years Abbreviated: 78-83
  • Product Years Individual: 1978, 1979, 1980, 1981, 1982, 1983
  • Product Years: 1978-1983
  • Pit Stop USA offers G Force Performance Products RCG-400K at low everyday prices. Be sure to check out all our products from G Force Performance Products including G Force Transmission Crossmembers.

    Product description: Transmission Crossmember 78-83 G-Body Cars. Transmission Crossmember, Bolt-On, Steel, Black Powder Coat, Frame Extension Included, TH400 Transmissions, GM G-Body 1978-88


    • GFCRCG-400K
    • GFCRCG-400K
    • G Force Performance Products
    • Available
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    • New

    Shipping Information

    • Item Requires Shipping
    • 33.0 lbs.
    • W10.5000” x H6.0000” x L50.7500”
    • Oversized / Overweight Item! Ships from Michigan.

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