MGM Brakes MJS3628ET060 Combination - S-Cam Brakes (Drum), Piston - Parking Brakes, Breather Tube

Tamper-Resistant Design. Lighter Weight. 3 Inch (76.2 mm) Long Stroke. Compact Size. Patented Integral Release Bolt Mechanism -Minimal Bolt Protrusion- Approx. 1.25 inch (31.8 mm) Protrusion On "Long Stroke" Models When Manually Released. Lower Hold Off Pressure (Less Air Consumption). Epoxy Coated Return Spring. Non-Coil Clash Power Spring. Increased Corrosion Resistance -Steel Head, Epoxy Coated. Available With 1,749 lb (793.3 kg) -2,450 lb (1,111.3 kg) of Push-Rod Braking Force @ 1.25 inch (31.8 mm) Stroke/Service Brake Sizes 17-36. Center Hole Shield. Service Size: 36. Spring Size: 28. Mounting Bolt Thread: 5/8-11. Mounting Bolt Length (in.): 1.660. Port Size: 3/8-18 NPTF. Threaded Yoke. Stroke (in.): 3.00.