Brembo - The Gran Turismo Brake Systems are comprised of both 1 or 2-piece vented rotors that are 12 to 15 inches cross-drilled or slotted. In the 2-piece system, billet aluminum hats are application specific and have been individually machined to engineering specifications. The marriage of these pieces create a "floating disc" which reduces heat related stress and improves brake performance and pedal feel.
Caliper Clearance Guide. (Use the A, B, and C Dimensions below.)
| Make: | GMC |
| Years: | 2007-+ |
| Caliper: | GT1-S 4-Piston (F50-Type) |
| Front/Rear: | Rear |
| Pistons: | 4 |
| Color: | B, R, S |
| Disk Size: | 380x32 2-Pc |
| Disk: | Drilled 2-Piece Rotor |
| Notes: | |
| P/N Drilled | 2H1.9002A |
| P/N Slotted | 2H2.9002A |
| Dim A | 12 |
| Dim B | 137 |
| Dim C | 215 |
