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Click on image for the lowdown. 
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| | | Forums66 Topics128,143 Posts1,056,786 Members48,454 | | 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: Nov 2006 Posts: 27 New Guy | | New Guy Joined: Nov 2006 Posts: 27 | On the 1/2 ton (fully enclosed) and 3/4 ton trucks (part that connects to the transmission only), why did they use the torque tube or closed drive shaft? They were obviously aware of the open drive shafts. The closed seems more costly and harder to work on. I once thought it had something to do with rear wheel traction but the 3/4 ton was closed at the transmission. | | |
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