These 1967-72Pontiac GTO, LeMans, Tempestfront stock spindle power disc brake conversion kits are one of the hottest sellers on the market.Now you can convert to Power Disc Brakes while retaining the original stock ride height, with our complete stock spindle power disc brake kit. These kits are zero offset to factory GM disc brakes. This kit works with many 14″ wheels. The stock steering arms may need to be modified.