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#61719 - Mon Jun 12 2006 10:48 PM SM-318 Transmission
OhTimothy Offline
Junior Member
Registered: Sat Mar 04 2006 12:00 PM
Posts: 19
Loc: SC
I have a 66 C10 with a three speed behind a 250 six cylinder. How can I tell if this tranny is the SM-318? Dave
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#61720 - Tue Jun 13 2006 07:51 AM Re: SM-318 Transmission
Frank50 Offline
Shop Shark
Registered: Wed Nov 29 2000 12:00 PM
Posts: 1497
Loc: Central IL, again
Man what a blast from the past! I bought a 66 C10 longbed Fleetside 250 3-speed back in 78 when I was a pup. Great little truck!! I should have kept it. Traded for a Chevy LUV frown Sorry, I don't know how to tell. I guess it would be by the stamped serial numbers and casting numbers.
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#61721 - Tue Jun 13 2006 12:31 PM Re: SM-318 Transmission
LONGBOX55 Online
Master Gabster
Registered: Mon May 08 2006 12:00 PM
Posts: 9398
Loc: DANVILLE IL
On a '66 I'd think it would be an SM326 if it's still the original. I'm not sure about #'s, but 1 way to tell is by the 1rst gear. SM318/319's have a slider gear for 1rst/reverse. The 326 is full syncronized. The case is longer as well. Can you post a photo? We can tell for sure that way.
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Bill Burmeister
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#61722 - Tue Jun 13 2006 03:05 PM Re: SM-318 Transmission
LONGBOX55 Online
Master Gabster
Registered: Mon May 08 2006 12:00 PM
Posts: 9398
Loc: DANVILLE IL
I've posted photos of an SM318 on the link to my truck photos-this should help.
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Bill Burmeister
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#61723 - Wed Jun 14 2006 08:56 AM Re: SM-318 Transmission
Frank50 Offline
Shop Shark
Registered: Wed Nov 29 2000 12:00 PM
Posts: 1497
Loc: Central IL, again
LONG
Your link won't work: you misspelled community. frown
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Frank50
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#61724 - Wed Jun 14 2006 02:12 PM Re: SM-318 Transmission
LONGBOX55 Online
Master Gabster
Registered: Mon May 08 2006 12:00 PM
Posts: 9398
Loc: DANVILLE IL
OOPS!!! Gotta lurn to spell! I've fixed it.
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Bill Burmeister
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