Wilwood 2.75 in GM round O-ring seal kit is a four-pack of round seals sized for GM caliper bores that specify a 2.75-inch diameter. Supplied to support caliper rebuild procedures, these seals are intended to replace worn or damaged round seals in compatible Wilwood or GM-style caliper assemblies when that size is required.
Wilwood O-Ring Kit - 2.75in GM Round Seal - 4 pk.