Trans-Dapt Collector Reducer - 3 in Inlet to 2-1/2 in Outlet - 3-Bolt Flange - Aluminized (Pair) 10203C is what these lifters have

is what these lifters have been manufactured from since their original design

Pit Stop USA offers Bilstein AK Series Rear Shock - 13

6 Degree Pinion Shims for Pickups with 2

188 in Long

Trans-Dapt Collector Reducer - 3 in Inlet to 2-1/2 in Outlet - 3-Bolt Flange - Aluminized (Pair) 10203C is what these lifters haveProduct Description: Collector Reducer 3 in Inlet to 2 1 2 in Outlet 3 Bolt Flange Steel Aluminized Pair Trans Dapt offers a wide range of custom engine components to boost both the performance and style of many vehicles. Their product line includes oil pans, oil filter relocation kits, valve covers, custom air cleaners, throttle body spacers, dress up kits, and much more. Trans Dapt Performance Products is using the latest in CNC machining and CAD