Wilwood Engineering - GM Metric Caliper

The Combination Caliper is a single piston floating design that attaches to a fixed radial mount bracket. The floating mount allows the caliper to maintain pefect alignment when the cable actuated mechanical parking brake lock is engaged and then released. The floating mount also keeps the caliper in correct alignment over the disc and prevents excessive pad knock-back on c-clip rear axles with measurable side play. As the pads wear, the caliper remains centered over the disc. Radial mounting provides nearly unlimited attachement options. Axle flange brackets can be configured to mount the caliper at any height within the compatible rotor diamter range, or lateral position relative the hat and rotor offset. The caliper is compatible with rotor diamters from 11.00" to 13.00" and is available in two models for either .810" or 1.00" width discs.

The parking brake lock is cable actuated. Connections are made with common cable ends that usa a 1/2" cable housing end on the stop bracket and a 1/8" to 9/64" cable with a crimped or welded ball end. The caliper will accept the OE cable on some vehicles. For other vehicles, new cable ends can be ordered to adapt the caliper to the vehicle's original cable system. For custom installations, aftermarket hand brake kit suppliers can easily configure the cable with the correct attachment end.

Mounting Dimensions and Brake Pad Ordering Information


Combination Parking Brake Caliper Highlights: Wilwood's Hydra-mechanical Combination Parking Brake Caliper uses hydraulic pressure for stopping and a mechanical locking mechanism for a parking brake. This redesigned unit provides new options for drum brake conversions and disc upgrades on rear axles that are not conducive to internal shoe systems. This caliper, when matched with the correctly proportionate rotor diameter, provides balanced bias and brake performance for use in conjunction with front wheel brake upgrades. It is the perfect compliment of high tech style to custom wheel, tire, and suspension modifications.
The Combination Caliper is a single piston floating design that attaches to a fixed radial mount bracket. The floating mount allows the caliper to maintain pefect alignment when the cable actuated mechanical parking brake lock is engaged and then released. The floating mount also keeps the caliper in correct alignment over the disc and prevents excessive pad knock-back on c-clip rear axles with measurable side play. As the pads wear, the caliper remains centered over the disc. Radial mounting provides nearly unlimited attachement options. Axle flange brackets can be configured to mount the caliper at any height within the compatible rotor diamter range, or lateral position relative the hat and rotor offset. The caliper is compatible with rotor diamters from 11.00" to 13.00" and is available in two models for either .810" or 1.00" width discs. The parking brake lock is cable actuated. Connections are made with common cable ends that usa a 1/2" cable housing end on the stop bracket and a 1/8" to 9/64" cable with a crimped or welded ball end. The caliper will accept the OE cable on some vehicles. For other vehicles, new cable ends can be ordered to adapt the caliper to the vehicle's original cable system. For custom installations, aftermarket hand brake kit suppliers can easily configure the cable with the correct attachment end. Mounting Dimensions and Brake Pad Ordering Information
Ordering Information:
Bore Size	Disc Width	Part Number
1.34" 34,0"	1.00" 25,4 mm	120-9650
1.34" 34,0"	1.00" 25,4 mm	120-9793
1.34" 34,0"	.810" 25,4 mm	120-9808
1.34" 34,0"	.810" 25,4 mm	120-9809