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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#43482 01/06/2003 6:14 AM | Joined: Nov 2002 Posts: 21 Apprentice | | Apprentice Joined: Nov 2002 Posts: 21 | Ok guys here is my question I'm going to go with a 1955 4 speed open transmission behind my 1962 235 and put in a blazer rear-end. Should I look for a 3.08 gearing or the 3.42 | | |
#43483 01/06/2003 6:31 AM | Joined: Dec 2002 Posts: 571 Shop Shark | | Shop Shark Joined: Dec 2002 Posts: 571 | I have a 235 with a T-10 4 speed and a 3.42 rear. For now, I just use my truck around town and it's great (under 60). But if I were to do much highway driving, I would probably go with the 3.08 rear if you want to keep the 4 speed. I'm looking for a 5 speed to run with my 3.42. (best of both worlds I hope).  Good luck | | |
#43484 01/06/2003 6:37 AM | Joined: Dec 2002 Posts: 571 Shop Shark | | Shop Shark Joined: Dec 2002 Posts: 571 | I found an RPM calculator that you can download. It will probably help you in your decision. http://www.5speeds.com/index.html | | |
#43485 01/06/2003 8:32 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Here is a whole collection of calculators that don't require downloading: Randy\'s Ring and Pinion calculators
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A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
#43486 01/06/2003 8:38 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | I have a 261 and I'm planning on doing a 3.08 with the SM420 4 speed.
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A lone amateur built the Ark. A large group of professionals built the Titanic. | | |
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