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Click on image for the lowdown. 
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| | | Forums66 Topics128,035 Posts1,055,445 Members48,422 | | 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: Mar 2020 Posts: 4 New Guy | | New Guy Joined: Mar 2020 Posts: 4 | hi guys was wondering if any of you guys have ever seen or heard of this . My truck has a split drive shaft with a what im calling a overdrive box . On the dash between the choke and throttle there is a black knob . Going down the road ill push in the clutch and pull the knob out and it drops almost like in to another gear . 1953 3600 235 long bed . like to hear your thoughts . thanks | | |
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