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Mod | | | Forums66 Topics128,032 Posts1,055,516 Members48,425 | | Most Online14,466
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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
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#34059 12/30/2002 4:13 PM | Joined: Dec 2002 Posts: 55 Member | | Member Joined: Dec 2002 Posts: 55 | I have a 51 1/2 ton that has aquired a 56 engine. It still has a torque tube driveshaft. The 3 spd trans dosen't shift well - syncros, I guess. Could anyone tell me how to determine if the trans is the 51 or 56? Or does it matter, ie, are the same syncros used in both years? | | |
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