Trans rebuild - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RTHarvey · 04-10-2018, 06:17 PM

I have a 67 c10 that is making some noise, like a loudish whine. Sounds to me like a differential, but my main mechanic thinks the noise is coming from the transmission. It is an SM420 GM/Muncie 4 speed, compound low. Option code M20. If it is the transmission, I think it is gears rather than bearings. I have been doing a little research, and the gears for this transmission are not plentiful, at least at anywhere that I can find. I don't know what I need yet, but I would like to have a few sources for gears for this transmission lined up before it is scattered on the floor. Most of the normal wear-and-tear parts seem to be available from multiple sources. Anyone have any ideas for a source for the gears for this trans?

04-10-2018, 06:17 PM	#1
RTHarvey Registered User Join Date: Dec 2017 Location: Wichita, KS Posts: 62	Trans rebuild I have a 67 c10 that is making some noise, like a loudish whine. Sounds to me like a differential, but my main mechanic thinks the noise is coming from the transmission. It is an SM420 GM/Muncie 4 speed, compound low. Option code M20. If it is the transmission, I think it is gears rather than bearings. I have been doing a little research, and the gears for this transmission are not plentiful, at least at anywhere that I can find. I don't know what I need yet, but I would like to have a few sources for gears for this transmission lined up before it is scattered on the floor. Most of the normal wear-and-tear parts seem to be available from multiple sources. Anyone have any ideas for a source for the gears for this trans?



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.