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| | | Forums66 Topics128,154 Posts1,056,838 Members48,456 | | 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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| | | | Joined: Jun 2011 Posts: 291 'Bolter | | 'Bolter Joined: Jun 2011 Posts: 291 | What is the difference in gearing between my original 3 speed tranny in my 50 3100 and a later model 3 speed with overdrive? Like a 58 3 speed with od? Would it be like a 4 speed with a 4th gear being overdrive? how much increase in highway speed do you get with this overdrive? Does a 58 3 speed with od use a torque tube set up or standard open driveshaft configuration? Just trying yo gain some knowledge. | | |
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