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72 CustomCamper · 05-15-2009, 01:25 PM

One of the biggest things to check is, see if the 86 has a 1 piece rear main seal or not. The 1 piece seal's flywheel is different than the one for a 2 piece seal like your 78 should have. The 86 should also have a hydraulic clutch setup where the 78 would have a push rod and z bar setup. The motor size difference will not affect anything...

Chuck

05-15-2009, 01:25 PM	#4
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,368	Re: Auto to standard trans swap One of the biggest things to check is, see if the 86 has a 1 piece rear main seal or not. The 1 piece seal's flywheel is different than the one for a 2 piece seal like your 78 should have. The 86 should also have a hydraulic clutch setup where the 78 would have a push rod and z bar setup. The motor size difference will not affect anything... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"