Fits the 4L80, 4L80e  & 4L85, 4L85e transmissions. Finished in a black powder coat. Includes new mounting hardware. Purchase transmission mount separately. p/n GMTM.

1968-1974 (Note: Distance between crossmember frame holes is approximately 30-3/8″. Measure your frame or crossmember to insure proper selection)

p/n RCF1-4L80 installation notes:

• Ththis crossmember is installed with the G Force label facing the rear of the vehicle. A second determining feature is crossmember center tube has a 1/2″ drain slot located on the bottom and on the passenger side next to the hump weldment.
• The crossmember is installed so that the exhaust clearance humps are closed on the top and open on the bottom.
• To utilize the provided 7/16 hardware it is necessary to enlarge the holes in the frame rails. If the installer chooses to utilize the stock size 3/8 hardware, it is strongly recommended that the installer obtains Grade 8 fasteners and washers to compensate.