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| | | Joined: Dec 2020 Posts: 14 'Bolter | | 'Bolter Joined: Dec 2020 Posts: 14 | Pulled the clutch assembly out. OD on clutch is 10.75. PP has nine bolts. All new assemblies I see are 6 bolts. Any suggestions on where to get replacements? | | | | | Joined: May 2015 Posts: 11,037 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: 11,037 | NAPA used to list the larger 9 bolt clutch, but I don't see it now. You might try calling your local NAPA store and see what they can dig up.
Chevy's of the 40's lists both the pressure plate and disk, but pretty spendy. They also have a core charge. You might hunt for local rebuilders, especially if you just need a new disk, which can be relined.
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. | | | | | Joined: Jul 2014 Posts: 892 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 892 | I had NAPA look up availability for the 9-bolt clutch cover last week. No listing at all. Not even NLA.
About four years ago I had a local rebuilder rebuild the clutch cover assembly. He botched the job but didn't charge me. He did the disc OK. I took the assembly to Chevs of the 40s and they exchanged it. I got a phone call a few days later from them asking if I really intended to turn in a completely rebuilt clutch as a core. I explained. I don't remember what they charged me.
I recently had the engine out and bell housing off and wanted to get a 6-bolt clutch but, BUT, Chevrolet changed bell housings, flywheels and clutch between '53 and '54 and the flywheel again in 55 2nd for the 12V starter. So, I planned to compare measurements between the height and diameter of the 9-bolt and 6-bolt clutches to ensure the 6-bolt clutch would fit. There isn't much extra room inside the bell housing when you look through the inspection hole, maybe 3/8". If the clutches were similar diameter and height, my plan was to have the flywheel drilled for 6-bolts when I had it resurfaced. NAPA didn't have an 11" diaphram clutch for me to compare and I didn't need a clutch at this time so I kept the existing clutch and will deal with the new clutch when the time comes.
If you can find a 6-bolt, 11 inch, diaphram clutch to measure against your 9-bolt and they are the same or close enough, you can have the flywheel drilled.
If you need only the disc, you can use an 11" in place of the 10-3/4". I have done this. The disc I got had more and beefier springs for a V8 and it always juddered slightly on take-up. I only pulled it because it got oil soaked but the judder was always a minor annoyance.
1951 3800 1-ton"Earning its keep from the get-go"In the DITY Gallery1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971. | | | | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | 1 Ton tommy You can grind the edge of that 11 inch disc lining on both sides so it wont rub . | | |
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