The Cadillac CTS-V 8.8 differential block is made of 60A polyurethane and goes between the differential and our 8.8 mounting bracket.  The block is designed to work with the front diff bushings to hold the 8.8 in place. This block adds a large surface area of material used to stop the pinion from lifting up on hard launches. However, the block maintains a comfortable NVH (noise/vibration/harshness) level.

FOR USE WITH FORD 8.8 DIFFERENTIAL SWAP ONLY