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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: Mar 2007 Posts: 7 New Guy | | New Guy Joined: Mar 2007 Posts: 7 | Anyone know where to find specs for the CM55 series? I have plenty of Spicer service manuals but they are somewhat useless unless you want a picture of something. The only specs found in any of my spicer manuals are end play and torque specs. I need case specs, shaft diameters, bearing journal sizes. Spicer is useless I tried emailing them but all I get is phone numbers to call. Phone numbers are useless when you cannot talk. Any help would sure be appreciated. | | | | | Joined: Feb 2004 Posts: 29,813 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,813 | Try Jasper engine & transmission exchange, in Jasper, Indiana. They have been rebuilding medium and heavy-duty transmissions and differentials for many years, and they might be willing to share some specifications with you.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | I have a fair number of Spicer manuals, not sure if I have one for a CM55 or not, but I don't think I've seen the kind of detailed specifications listed for any of them.
Spicer may still be your best bet, or as Jerry suggested a friendly professional transmission rebuilder.
Grigg | | |
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