PTP is the only one offering this HP clutch pack for the stock clutch drum.
We have personally tested this in our own truck for the last 4 years with great success.
Great for guys that want to add power on a budget.
Includes: Goerend O/D-reverse pressure plate, Sonnax U/D-O/D pressure plate with wider surface than a factory plate, 14 single sided O/D clutches, 1 dual sided clutch, and 2 U/D clutches to help gain the proper clearance.
Special thanks to Ultramatic Diesel Performance