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Click on image for the lowdown. 
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| | | Forums66 Topics128,162 Posts1,056,951 Members48,458 | | 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: Jun 2012 Posts: 37 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2012 Posts: 37 | If I can find an SM318 with OD will it bolt right up to the 283? Are there any other easy auto OD options to consider for around $500? What other adjustments would be necessary to the driveline, etc.? Is there an auto on the floor shifter that looks like a standard stick or go with on the tree? Thanks for the info. | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | With OD the designation is SM319. It will bolt to your bellhousing in place of the SM420. I'm not sure if the driveshaft length would be right.
Deve, a member of this site, has designed a floor shifter to be used with an SM319. | | |
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