The D154 forged billet caliper from Wilwood is a lightweight, high-strength, direct bolt-on alternative to the OE cast iron calipers used on a wide range of factory disc brake equipped mid size GM cars and small trucks starting in 1978.
Some GM models still utilize this caliper as late as 2002.
The D154 calipers and brake pad compounds are widely available and popular in various restricted class competition categories and drum to disc conversions for hot rods and street machines.
There are three available piston configurations for the D154: a large 2.50" single piston, and two two-piston models with 1.62/1.62" or 1.12/1.12" pistons.
All three calipers feature stainless steel pistons to resist corrosion and reduce heat transfer from the pads into the caliper body.
High temperature, square faced bore seals are included to ensure controlled piston retraction and reliable performance from the wider sealing face.
This combination of components has a proven track record of long service life and reliable performance in any driving environment, including extreme sustained high temperature racing applications.
The caliper slide pin holes come with dampening rings to reduce noise from vibration.
Bleed screws are fitted on both ends to allow mounting in any left hand or right hand, front leading mount, or rear trailing mount locations.