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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: May 2005 Posts: 229 'Bolter | | 'Bolter Joined: May 2005 Posts: 229 | We are trying to install our rebuilt SM318 manual transmission onto our 1960 Chevy Apache, and the transmission stops about 1/8th of an inch from the bell housing.
We installed a new pilot bearing with a new clutch and pressure plate. The trans goes in about 1/4 of an inch before feeling a little resistance. We can swivel the trans back and forth and wiggle it to about 1/8th of an inch before it seems to not move closer.
A friend had the same issue with their 1982 Chevy truck and eventually took it to a transmission shop to get it installed. The shop claimed the pilot bearing was put in crookedly.
Has anyone else run into this problem?
1960 Chevy Apache (C10)
1965 Chevy C30 Dump Truck
1966 Chevy C30 Tow Truck
| | | | | Joined: Jan 2008 Posts: 4,963 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,963 | The pilot bearing is about the only thing that can stop it where you at now. How hard are you pushing. I have been installing transmission for 70 years sometime they can be stubborn. Did you use a pilot shaft or alignment tool? I prefer an old pilot shaft over a plastic alignment tool. | | | | | Joined: Mar 2010 Posts: 10,305 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,305 | Did you use guide pins in the top 2 holes in the bell housing when you installed it?
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: May 2015 Posts: 11,152 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,152 | Even with a plastic alignment tool, it can be tough to get the shaft into the pilot bearing. I've pried on the clutch arm to release the clutch disc and it slips right in place. Definitely use guide pins on the top bell housing holes like Carl mentioned.
The only way the pilot bushing could be installed crooked is if the crankshaft is bored crooked, and that's not likely.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | |
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