Friday, October 21, 2016
GM Single Piston Caliper – Part No: 120-8926
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GM-Metric-Iron Single Piston Floater Product Number: 120-8926     Price: $92.34

Caliper No: 120-8926
Wilwood GM-Metric-Iron Single Piston Floater Caliper

Wilwood GM-Metric-Iron Single Piston Floater Caliper
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GM-Metric-Iron Single Piston Floater
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.    Continue >>

120-8926 - Product Summary
Count: Area (in²): Type: Dust Boot:
1 5.94 Stainless No
Rotor Dimensions
Rotor Width(In): Rotor Diameter(In):
1 11.75
Pad Dimensions
Pad Area (in²): Pad Volume (in³):
8.7 2.9
Mount Center(In): Mount Position: Mount Side: Mount Type:
5.46 Universal Floating
Duty Rating & Material
Material: Weight(Lbs):
Iron 4.3
Colors & Finishes
Color: Finish:
Bare Bare
Product Documents
Full Product Product Data Sheet Installation Instructions
Click To View Click To Download

Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication Duty
Street Rods  Heavy Duty
Street Performance DomesticHeavy Duty
Street Performance ImportHeavy Duty
Late Model Asphalt ASA, All Pro, SW Tour, etc...Medium Duty
Drag Racing Heavy Duty
Off Road Medium Duty

Product Specifications
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
Pad Dimensions & Part Numbers
Pad Dimensions for the GM-Metric-Iron Single Piston Floater

Pad Dimensions for the GM-Metric-Iron Single Piston Floater
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Piston Specifications
Piston 1 Bore(In): 2.75
Piston 2 Bore(In):
Piston 3 Bore(In):
Total Piston Area (in²): 5.94
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
Mount Dimensions & Part Numbers
Dimensions for the GM-Metric-Iron Single Piston Floater

Dimensions for the GM-Metric-Iron Single Piston Floater
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Parts & Accessories
O-Ring Kit: 130-4955
Replacement Dust Boot: N-A
Replacement Piston 1: 200-6633
Replacement Piston 2: N-A
Replacement Piston 3: N-A
Replacement Piston 4: N-A
Cross-Over O-Ring Kit: N-A
Bridge Bolt Kit: N-A
Wear Plate L/H: N-A
Wear Plate R/H: N-A
Pad Retainer: N-A
Bleed Screw Kit: 220-8932
Self Bleeder Tube: N-A
Cross-Over Tube: N-A