GM-Metric-Iron Single Piston Bare Floater Caliper

These all new cast, not rebuilt iron calipers are bolt-on replacements for 1978 and later GM Metric calipers widely used in "spec" racing categories and low cost disc brake conversions. Requires use of hardened Wilwood slide pins (sold separately), request part no. 230-0619 (slide pin kit) contains 4 slide pins, enough for two calipers

Wilwood iron GM Metric calipers combine new part quality with modern machining precision. There are two piston size options to assist builders with properly building static bias into a car. Previously, builders using the metric calipers generally had to mount the same size calipers on all four wheels. This drastically limited the tuning options and often created front to rear bias ratios that were not conducive to good handling and stability under hard braking. Some builders, and other brake suppliers, chose to offer re-machined OE calipers to provide a bias tuning option. Unfortunately, re-machining a used casting that was never designed for the larger bore size, can create real compromises in strength, reliability, and performance.

Rotor Compatibility:

• Rotor Width(In): 1
• Maximum Rotor Width(In): 1.04
• Minimum Rotor Width(In): 0.81
• Maximum Rotor Diameter(In): 11.75
• Minimum Rotor Diameter(In): 11

Brake Pad Specifications:

• Brake Pad Type 1: D154
• Brake Pad Type 2: N-A
• Brake Pad Type 3: N-A
• Total Pad Area (in²): 8.7
• Total Pad Volume (in³): 2.9

Piston Specifications:

• Piston 1 Bore(In): 2
• Total Piston Area (in²): 3.14

Mounting Specifications:

• Mount Type: Floating
• Mount Side: Universal
• Mount Center(In): 5.46
• Mount Hole Size(In): 0.69
• Mount Height(In): 0.48
• Inlet Thread Size: M10 x 1.50