Application: Direct Fit for 62-66, 60-61 must drill 2 holes Uses 55-57 Chevy booster brackets Mounts booster closer to the firewall than other conversions This booster mount will make life simple on your old C-10. It adapts the original diagonal pattern on the firewall to a more common stud spacing that allows for the use of mass produced, less expensive 55-57 Chevy aftermarket booster/MC combos. Overall, less expensive than other booster master cylinder combos for 60-66 which require you to drill new mount holes and ignore the factory mounts that this bracket makes use of.
