To remove the front caliper on a 2015 Chevy 2500HD, you typically need a 14mm socket or wrench for the caliper mounting bolts. Some models may also use a T55 Torx bit for the same purpose. Always verify with your specific vehicle's service manual to ensure you have the correct size.
Torx is a 50 and they are really tight.
You need a 3/8" Allen wrench to remove them.
3/8
3/8"
3/8"
You need a 3/8 Allen Wrench
I believe a 3/8 Allen is the right tool.
Remove the two slider/anchor pins using a 3/8" Allen wrench and the caliper will come off.
3/8
It takes a FA12A Allen wrench.
44
Depending where it was built, a 3/8 Allen key or 15 mm regular wrench.