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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!
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| | | | Joined: Sep 2009 Posts: 78 Wrench Fetcher | | Wrench Fetcher Joined: Sep 2009 Posts: 78 | I understand that a 3 speed with OD was offered in years 58-59 years. Are these transmissions fairly common? I have a 1953 1/2 ton 3100 and want to swap it out for an open drive train from a 55-62. With the overdrive mated with the 3.90 axle, will this give me good highway cruising speeds around 70? Also, was the OD unit offered these years mechanical or electrical? I have never seen one so my fear is that they are rare and very expensive if one is available. Thanks
1953 3100 Chevy 5 window
1971 Chevelle SS
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