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yossarian19 · 05-19-2012, 10:47 AM

Hate to resurrect a dead thread, but it's better than making a new one (I think?)
I've got a 57 with a three speed, wanting to go to a SM565.
It looks like I may or may not have throwout bearing travel adjustments to make.
Do the later-model SM465 transmissions use the same 4-bolt bellhousing pattern as the earlier 3 speeds?
Also - I'm told by previous owner that the existing trans is a 3 speed with a granny low that came out of an old school bus. It is shifted off the floor, looks to have a 10 spline output (I didn't count, though. D'oh) and is bolted to the 235 currently. I also have a 90 degree V8 / 3rd gen I-6 bell housing for this mystery trans. Any ideas what it is, so I can start figuring out compatibility?

05-19-2012, 10:47 AM	#17
yossarian19 Registered User Join Date: Sep 2011 Location: Nevada City, CA Posts: 908	Re: 1955 Chevy 3100 1st series 5 window Hate to resurrect a dead thread, but it's better than making a new one (I think?) I've got a 57 with a three speed, wanting to go to a SM565. It looks like I may or may not have throwout bearing travel adjustments to make. Do the later-model SM465 transmissions use the same 4-bolt bellhousing pattern as the earlier 3 speeds? Also - I'm told by previous owner that the existing trans is a 3 speed with a granny low that came out of an old school bus. It is shifted off the floor, looks to have a 10 spline output (I didn't count, though. D'oh) and is bolted to the 235 currently. I also have a 90 degree V8 / 3rd gen I-6 bell housing for this mystery trans. Any ideas what it is, so I can start figuring out compatibility?