As far as I know and correct me if I'm wrong, but they don't make a split neoprene seal for the GMC.
Not yet, but I haven't started whittling yet. I've got an idea in the "dreams and schemes" stages right now to make the block and the crankshaft compatible with a big block Chevy V8 split seal. It will be a similar procedure to what I do on Chevy engines, but there will be an aluminum, or maybe steel seal holder pinned or bolted to the block and the rear main bearing cap. The seal surface on the crank will have to be ground to a slightly smaller diameter. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
