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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
with Ads!  Again, thanks!
| | | | Joined: Jun 2005 Posts: 168 'Bolter | | 'Bolter Joined: Jun 2005 Posts: 168 | So I was looking at the GM heritage center's data on the pre '41 chevy trucks and ncame up with a rather niche question.
I noticed that a 5.43 rear axle ratio was standard on most of the 1 1/2 tons while the 6.17 was an option.
All of the advance design 1.5 ton trucks have the 6.17 ratio, and I've seen posts that mention the H110 was built into the '80's and you could find 3rd members with 5.43 gears.
Seeing all the previous 1.5 ton rear axles with 5.43 ratios made me wonder if those old axles had the same 3rd member design and bolt pattern that the advance design and newer H110's had.
Has anyone looked at this, or does anyone have any of the older 1 1/2 ton rear axles or 3rd members laying around to compare with a newer advance design rear axle?
Liquidated my projects
Now looking for a decent '47-'55.1 3100, 3600, or 3800
| | | | | Joined: Apr 2005 Posts: 242 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 242 | I think the 3rd members are not the same just the ring and pinion is the same. I think the 5:43 was the option and the 6:17 was standard it is hard to find the 5:43.
Marv. | | | | | Joined: Apr 2005 Posts: 242 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 242 | Do a H110 search on the Driveline Forum there is lots of information there.
Marv. | | |
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