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Mod | | | Forums66 Topics128,081 Posts1,056,078 Members48,434 | | 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
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2012 Posts: 138 'Bolter | | 'Bolter Joined: Nov 2012 Posts: 138 | I recently rebuilt my 1946 GMC 1/2 ton three speed trans. Replaced input shaft, counter shaft, synchro rings among other items. The trans worked great for fifty miles then while driving it wouldn't go into second no matter what I tried. Drove the truck home using 1st and 3rd, no problems. Opened up the top and I can't see any damage but it still won't shift into 2nd. It's like the spring and ball on the shifter shaft won't let the shift fork move the synchro drum toward 2nd gear. Does anyone have an idea what happened? I thought I'd check with the forum before pulling the trans. I am hesitant to try and force it. I think pre 68 Dave might have an idea of what is wrong but I'm looking for any thoughts
Thanks, Dave | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I will PM you my phone number.
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