Brothers Performance has a wide selection of replacement seals for your 1979-93 Mustang 5.0. We have everything from front and rear main seals to transmission oil seals. When replacing a clutch it’s a good idea to replace your 1979-93 Mustang rear main seal at the same time to prevent potential oil leaks onto a new clutch. It makes sense and will save you money and hassle in the long run.