GM-Metric Single Piston Clear Anodize Floater Caliper (Piston Area: 4.45)

Wilwood’s GM Metric Caliper is a direct replacement for the 1978 and later D154 type GM metric caliper. Weights starting at 2.92 pounds, it provides a substantial weight savings over cast iron OE calipers. 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

This competition caliper represents the latest refinements in caliper design and manufacturing through the use of computer based FEA solid modeling and stress simulation programs. The real strength of this caliper comes from its triple bridge configuration, and its lightness is a result of efficient design.

Rotor Compatibility:

• Rotor Width(In): 1.25
• Maximum Rotor Width(In): 1.25
• Minimum Rotor Width(In): 1.19
• 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): 2.38
• Total Piston Area (in²): 4.45

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: 1/8-27 NPT