sunnyc123abc 1/2 ton status Joined Mar 12, 2005 Posts 636 Reaction score 1 Location SoCal Apr 16, 2009 #1 For a 79' 350, which rear main seal do i get: Offset lip, single lip or double lip?
chevyuser74 1/2 ton status Joined Jun 19, 2006 Posts 1,472 Reaction score 0 Location Mukwonago, Wi Apr 17, 2009 #2 i always get the double lip, but thats also the only seal out of the three my local store stocks.