Vinyl rear main seal made for Mopar product that can be made to work on GMC six bolt flange 270-302.
(intended for slant six)
Vinyl rear main bearing seal that can be made to work on GMC 228-248-270 and 302. Requires modification. $15.00. We have installed them using shims made from wire ties and glueing in with blue RTV. It works. Nobody makes a stock vinyl rear main seal for GMC 228-248-270-302. Do it yourself project: $15.00.
