The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

BigBlockBurris · 03-23-2010, 10:23 PM

I need some help. I am fixing to swap motors in a 1968 GMC with a four speed (SM-420). I am installing a one-piece rear main seal 350. So heres the question. What flywheel do I use for the one piece rear main seal motor, but with the mechanical clutch linkage. All factory one-piece rear main seal straight drives were hydraulic clutch.

Thanks!

BBB

03-23-2010, 10:23 PM	#1
BigBlockBurris Registered User Join Date: Nov 2001 Location: Concord,NC,USA Posts: 743	Flywheel question I need some help. I am fixing to swap motors in a 1968 GMC with a four speed (SM-420). I am installing a one-piece rear main seal 350. So heres the question. What flywheel do I use for the one piece rear main seal motor, but with the mechanical clutch linkage. All factory one-piece rear main seal straight drives were hydraulic clutch. Thanks! BBB