Fits factory TH400 transmission. This crossmember allows installation of most long tube headers, and provides clearance for large diameter aftermarket dual exhaust systems . Finished in a black powder coat. Includes new mounting hardware. Purchase transmission mount separately. p/n GMTM.
1971-1976 (note: distance between crossmember frame holes is approximately 54-1/2″. Measure your frame or crossmember to insure proper selection)