1980-1991 GMC B6000 6.0L V8. 1980-1985 GMC B6000 7.0L V8. Application specific, providing unsurpassed quality for a seal you can trust. Validated for fit, form, and function. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.