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| | | Forums66 Topics128,043 Posts1,055,611 Members48,426 | | 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: Sep 2007 Posts: 393 'Bolter | | 'Bolter Joined: Sep 2007 Posts: 393 | From what I have found out on line and from my shop manual (1947 AD (Thriftmaster) or 1947 second series) is that the '47 came with a three speed on the floor with synchros or a four speed without synchros. The SM 420 wasn't used until 1948.My transmission is a four speed with no synchros. There is a reverse lockout lever rod that runs along the side of the shifter which is activated by lifting up on a 'tab' to the right and just below the knob. On the SM 420 you push down on the shifter and put into reverse position. My transmission has a PTO plate.
It's a small world, but I wouldn't want to paint it.
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