Master Cylinder: 67-77 Disc Front 1 1/8" - GMRP (read notes) Deep or Shallow Pin use. READ DESCRIPTION on LOWER LHS

READ DESCRIPTION on LOWER LHS of page - IMPORTANT

No exchange nesseccary

This is for cars with Drum front and Drum rear

Bearing Diameter A 1

coupled with leakage into the dissy by badly designed seals

Master Cylinder: 67-77 Disc Front 1 1/8" - GMRP (read notes) Deep or Shallow Pin use. READ DESCRIPTION on LOWER LHSREAD DESCRIPTION on LOWER LHS of page IMPORTANT. Note: NOT FOR DRUM BRAKE FRONT .. THIS IS FOR GM U. S. Single Piston DISC BRAKE FRONT BORE IS 1 1 8" HAS THE OPTION DEEP PISTON for both earlier and later booster pins. 1967 1977 Cast Iron with Bleeders 1 1 8" Bore; Deep Hole 9 16" & 1 2" Ports on Left Side with Bleeder Valves Licensed GM Restoration Part Exact Copy of Original w casting number 5468309 For those with a need for a original casting master