GMC fitment depends on the exact North American model year, engine, drivetrain, axle and factory brake package. An imported vehicle may not be described fully by UK registration data.
Select the vehicle below and send the VIN or build details, current disc and caliper measurements, wheel specification and intended use. Identify Denali or other factory packages, towing changes and any Chevrolet or aftermarket brake parts.
Brake buying check: Match the model year, drivetrain, axle and option notes on the listing. Related Chevrolet trucks can still differ in hubs, brakes or approved applications. Vehicle mass, axle loading and tyre specification also belong in the conversation. Check the proposed caliper template against every wheel set used on the vehicle. Do not choose a conversion from wheel diameter or a shared GM platform alone. The kit maker must confirm the exact GMC application.
Use the current manufacturer application, clearance and installation documents for the selected part number.
Brake work is safety critical. Use a suitably experienced installer and the current vehicle and component instructions. Do not drive the car until the system has been checked, bled and tested as those documents require.