Product Summary

  • This crossmember fits both SBC and BBC engines for the 67-69 F-Body and 68-74 X-Body.
  • This crossmember will fit 1996 and later 4L60E, and 4L65E transmission for LS engine swaps.
  • We recommend a polyurethane transmission mount. The GMTM is sold separately.
  • For the 1967-1969 F Body and 1968-1974 X Body frames, the distance between the crossmember frame mounting holes is 30-3/8". To ensure proper crossmember selection be sure to measure your frame before you order.
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Key Specs

MFG. Part #GF-RCFXI-W
BrandG Force Crossmembers
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G Force Crossmembers GF-RCFXI-W Details

  • Fits Models: GM F and X-Body Models: Camaro, Nova, Trans Am, Firebird, Ventura, Omega, Apollo, Chevy II
  • Fits Years: 67-69 F-Body, 68-74 X-Body
  • This crossmember fits both SBC and BBC engines for the 67-69 F-Body and 68-74 X-Body. 
  • Fits Transmissions:,  700R4, 4L60, Pre-1996 4L60E, TKO-500, TKO-600, TKX, GM T-5, 2WD-AR5.
  • This crossmember will fit 1996 and later 4L60E, and 4L65E transmission for LS engine swaps.
  • We recommend a polyurethane transmission mount. The GMTM is sold separately.
  • For the 1967-1969 F Body and 1968-1974 X Body frames, the distance between the crossmember frame mounting holes is 30-3/8". To ensure proper crossmember selection be sure to measure your frame before you order.
Boss Hog Torque Converters recommended for this application:
48402, 48442, 48443, 48441, 48401, 48403, 48453, 49454, 49452, 49451, 49462, 49463, 49752, 49754

Specifications

Weight: 22 lbs

Shipping Dimensions: 36 × 6 × 6 In

Finish: Black Powder Coated

Mounting Hardware: Included


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 transmission 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.

G Force Crossmembers GF-RCFXI-W Specifications

KEY SPECS
MFG. Part #GF-RCFXI-W
BrandG Force Crossmembers
GENERAL
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