Earls Stat-O-Seal - 178007ERL FrontLines Dual 2-1/2" Outlets

Dual 2-1/2" Outlets

6 V8 1977 - 1986 GMC Jimmy 305/5 V8 1975 - 1978 GMC K15 400/6

50-inch Crossmember-Back Exhaust System

1 L6 1978 GMC C15 292/4

Earls Stat-O-Seal - 178007ERL FrontLines Dual 2-1/2" OutletsOverview: The Stat O Seal is very simply the best sealing washer available. It consists of a synthetic rubber "O" ring mechanically locked to the I. D. of an aluminum washer. When tightened, the "O" ring is compressed, forcing the sealing surfaces around the bolt shank. They will form a positive seal over a temperature range of 85 to +450 F. They provide the advantages of an "O" ring type seal without the necessity of machining "O" ring grooves into