I have several sets of the brackets for the LS1 front brake conversion kits. The brackets are 5/16" steel, look great. $48.00 a set, including shipping within the 48 States. I accept paypal.
The S10 brakes are 11" rotors (stock is 10") with dual piston cast iron calipers. PRO: You can use most 15" wheels, CON: has sealed hub bearing, cost $150.00 per side to replace. The LS1 brakes have 11.9" rotors, alum. dual piston calipers. PRO: great stopping power, CON: must use 16" or larger wheels to clear calipers. Both brake kits are a good upgrade. I have the LS1 kits on my car & my son`s GN.