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| | | Forums66 Topics128,064 Posts1,055,861 Members48,428 | | 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
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2011 Posts: 96 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2011 Posts: 96 | | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | Trans is a SM420. Used from 1948-69 in Chevrolet's.
They used an inclosed drive shaft up to 1954, than they went to open drive. The rear extension housing and yoke can be swapped.
Cool truck!
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Feb 2011 Posts: 1,362 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 1,362 | The brake pin on the RH side of the cover is for a park brake handle. And means it came from a 1 ton up.
Kicking self for selling off my Taskforce trucks.
Still looking for an LCF or conventional big bolt in decent shape.
As of 10-26-2022, A 55.2 Taskforce long bed now the work begins
| | | | | Joined: Apr 2011 Posts: 96 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2011 Posts: 96 | Thank you, the numbers seemed to indicate a SM420 but to me the photos didn't look right, I am far from able in identification. know I think I'll make up some mounts and debate on if I want to put the 228 GMC I have in it or wait and rebuild one of my 270 GMC and drop that in.
I'm really happy with the trade, I gave a early 50s Chevy cab and doors to a guy for it, there's a bit of patina and only three holes underneath the cab and there small. | | | | | Joined: Apr 2011 Posts: 96 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2011 Posts: 96 | I'm glad it is a 1 ton plus tranny the truck frame and body is a 1 ton model ,its good to see whoever added the new transmission didn't make it to hard on me. now to see if the brake handle in the bed of the truck matches the bolts on this tranny or the original. | | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | Are you saying that a 248 was bolted to that bell housing? It appears to be a V-8 bell housing which shouldn't fit.
Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine
| | | | | Joined: Apr 2011 Posts: 96 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2011 Posts: 96 | no nothing was on the bell housing, I'm gonna remove the bell housing and see if I can retrofit it to a GMC strait 6 | | |
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