Advice on rear main seal replacement

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Originally Posted by mud.man.rj

I have changed an 85 rear seal and it was a one piece, first year I heard, maybe it was a late 85 early 86, can't say for sure. If it is a one piece will have to move trans back and pull flexplate to get at it, hope it is a 2 piece, easier.

'86 was indeed the year for the 1 piece rear main seal. '86 was a bastard year for the block though as it still had flat tappet lifters in the Corvette/Camaro/TA. In '87+ those engines went to roller cams. I've never seen an '86 SBC with anything other than the 1 piece rear main seal. Odd that yours was a 1 piece for '85.