To remove the guide pins on Rover 75 brake calipers, you typically need a 7mm Allen key. It's important to ensure that you have the correct size to avoid stripping the pins. Always check for any specific requirements based on the model year, as variations may exist.
9mm
I believe that will be a 7mm Allen key.
3/8" Allen wrench
7mm
7mm Allen wrench
3/8"
3/8" Allen wrench.
On some later model Fords the calipers have 7mm Allen heads, -an unusual size.
If your asking about what size wrench is needed to remove the bolt that holds the front brake calipers on a 93 Chevy pick up, it would be a 3/8" allen wrench.
Lift the vehicle on a car jack, remove the tire, remove the brake shoe/calipers, and remove the old brake pads. Put in the new brake pads, replace the brake shoe/calipers, replace the calipers, and lower the car.
3/8 inch Allen
To change the brake pads on a 1991 Chevrolet Caprice, you will need some tools. You're going to need a c-clamp, a hex key or Allen wrench to remove the calipers, and a wrench to bleed the lines.