.874", SB2 V8 5.7L, INTAKE O/S .180" LEFT AND RIGHT Rear End Upgrades A very strong mechanical differential

A very strong mechanical differential

Part Number: U1604B

& N1920 / N1922

D3517 can’t be used in F-Body applications due to limited clearances

.874", SB2 V8 5.7L, INTAKE O/S .180" LEFT AND RIGHT Rear End Upgrades A very strong mechanical differentialBAM roller lifters feature a 4 column design for ultimate strength and rigidity while minimizing mass. Deep roller bearing pocket provides maximum roller bearing skirting, maximizing rigidity and thrust surface area with smooth rounded edges that minimize lifter bore wear. FEATURES Triple Alloy Steel Billet Lifter Bodies machined on state of the art CNC equipment. Machined with "One and Done" concept for ultimate relational accuracy of all part