By Chris Petris
The fourth generation Corvette was a radical departure from General Motors early Corvette engineering. It eliminated a perimeter frame to support the suspension and driveline. Two front frame rails integrated into the first ever Corvette uni-body construction. This made for an interesting driveline mounting installation. The front suspension subframe was bolted to the frame rails while providing engine mounting points. The lack of a transmission crossmember added another twist, with a torque arm supporting the transmission and connecting it directly to the differential. The differential was mounted with two large bushings at the outer uni-body rear frame area. Rear vehicle weight was supported by a transverse spring that bolted directly to the differential rear cover.