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Mod | | | Forums66 Topics128,021 Posts1,055,355 Members48,420 | | 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: Feb 2011 Posts: 1,362 'Bolter | | 'Bolter Joined: Feb 2011 Posts: 1,362 | In the 1957 Truck Data Handbook, it shows the 4X4 option like it was a factory offering? I thought it started as a factory installed option in 1958? It also mentions that the gear set used in the front axle is made by Chevrolet same as the rear axle.
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: Mar 2010 Posts: 10,270 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,270 | 1957 Chevrolet trucks destined for the NAPCO installation came from the assembly line with a riveted on crossmember for the NAPCO crossmember. It also came with a 5600 pound gross weight designation on the ID plate on the cab.
As far as where the NAPCO kit was installed, I don't know.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Mar 2004 Posts: 6,212 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,212 | 1957 was the first year for the factory 4x4 offering, it was RPO-690. The gear shift lever mounting plate/bracket was riveted to the frame at the factory...dealer installed units were bolted on. The transfer case is bolted to crossmember #2...this crossmember is riveted into the frame at the same place for both the two and four wheel drive units. Mike B  | | |
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