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Click on image for the lowdown. 
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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
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| | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | Here are a few differences shown in the 1955-2nd Series Truck Shop Manual Supplement and in the 1955-2nd Specifications Manual: - chrome plated upper piston ring in 235 Loadmaster and 261 Jobmaster - silchrome XCR steel exhaust valves in 235 Loadmaster and 261 Jobmaster - positive rotation type valve rotators in 235 Loadmaster and 261 Jobmaster Pre '68 Dave might come up with more differences? | | |
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