ACT 1977 Chevrolet K5 Blazer XACT Flywheel Prolite 1999-audi-a6-quattro-base-esi1019583 They are designed to be

They are designed to be clamped on (clamps not included

the rest have a grooved bearing on the block side only

They are designed to fit BORLA® Cat-Back™ systems 140755 and 140756 ONLY

The kit contains a pair of control arms which correct the caster alignment for better straight line stability with lifted suspensions

Do not use the adapter for full 3” inlet

ACT 1977 Chevrolet K5 Blazer XACT Flywheel Prolite 1999-audi-a6-quattro-base-esi1019583 They are designed to beDramatically improved engine response and acceleration, mild to moderate gear rattle; Heat treated forging for strength and toughness, induction hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM