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| | | Forums66 Topics128,081 Posts1,056,074 Members48,434 | | 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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| | | | Joined: Jul 2005 Posts: 117 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2005 Posts: 117 | How can I tell if my truck has a regular 2 speed axle or the heavy duty(HD) axle? My truck is a 1956 6500 with a vaccum activated two speed axle. I have a line on some parts but I'm not sure which axle that I have. Thanks for any help. | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy Truckwhisperer, Vacuum shift is for the corporation diff. [ lighter duty ] electric shift is for the Eatons [ heavier duty ]. Hope that helps. | | | | | Joined: Jul 2005 Posts: 117 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2005 Posts: 117 | | | |
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