T55 TORX BIT ON THE FRONT 12MM SOCKET ON THE REAR!
55
Torx is a 50 and they are really tight.
You will need a T55 Torx bit to remove the front caliper of a 2001 Silverado 1500. A torx bit is a screw with a six point star shaped head. These come in different sizes.
T - 55 TORX, Across the board for similar GM's.
T55
44
Actually it is not a Torx bit -- it is a hex. I believe it is the largest one usually included with Hex sets.
T55
If it's the same as a 2003 1500 series (which I'm sure it is) it should be a T-55 torx bit. This is what it is...
T60. It's a torx bit.
The 2004 Silverado HD uses a t-55 torx bit to remove the caliper. The torx can be found and most any auto parts.