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Mod | | | Forums66 Topics128,212 Posts1,057,468 Members48,471 | | 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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| | | | Joined: Mar 2011 Posts: 1,146 Shop Shark | | Shop Shark Joined: Mar 2011 Posts: 1,146 | Hello, Does anyone know what the reason for this is? Click on link below to view Photo: Toque Tube welded on TabI have seen these Tabs on a lot of 1947-54 Chevy 1/2 Ton Torque Tubes. I always wondered what they were for? Thanks, | | | | | Joined: Mar 2007 Posts: 4,217 Moderator | | Moderator Joined: Mar 2007 Posts: 4,217 | Mine has that too, just assumed it was for balance. | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | On some years the E' brake return spring attaches there.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Nov 2001 Posts: 1,522 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 1,522 | As Pre68Dave said. Its for the E-brake return spring. | | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | | | | | | Joined: Mar 2010 Posts: 10,310 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,310 | Since the torque tube doesn't rotate, the only balance this tab would provide would be in a wicked Richard Petty multiple rollover he had late in his career. You need to see a video of it if you haven't already.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Aug 2001 Posts: 1,300 'Bolter | | 'Bolter Joined: Aug 2001 Posts: 1,300 | What models had a spring hooked to that tab? I had two theories, First was to protect the lip of the torque tube as it was separated from the transmission as it's tendency is to drop down and in a hurry, and Second (and I felt was my better theory), tied in with the mystery key shaped hole un the cab floor under the seat. I envisioned some sort of lock to hold the driveshaft up when there was no engine or transmission to keep the truck frame mobile. (whether for service or actually in the assembly line process) | | | | | Joined: Feb 2000 Posts: 988 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 988 | Before I saw all the e brake spring answers, I was thinking it was something that would have made assembly easier at the factory.
Brian Moore
1949 3100 5 window Deluxe
"Today is better than yesterday, but not as good as tomorrow"
| | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | I actually think it was both.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Mar 2011 Posts: 1,146 Shop Shark | | Shop Shark Joined: Mar 2011 Posts: 1,146 | I thought the welded on tab might have, somehow held the torque tube,
to help form the taper in the tube, from the larger diameter to the smaller diameter. | | |
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