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| | | Forums66 Topics128,052 Posts1,055,729 Members48,426 | | 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!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Feb 2003 Posts: 58 Shop Shark | | Shop Shark Joined: Feb 2003 Posts: 58 | I have a 1951 3/4 ton with 8 lugs that has the 4:10/1 gear ratio (I think) it is.
I also have a 1956 1/2 ton rear axle and front spindles.
Now the Questions, ...
1) What is the gear ratio in the 1956 axle?
2) Can I unbolt and replace the axle with the other without a major operation, and will the front spindles swap out the same?
I am sure someone out there has either done something simular, or given it a try.
Thanks in advance.
Collecting is fun, as long as momma enjoys riding in them.
| | | | | Joined: Apr 2001 Posts: 439 Shop Shark | | Shop Shark Joined: Apr 2001 Posts: 439 | Your ratio is probably 4.56
'56 Axle should be 3.90
The rear axle will need the perches (on the axle itself) relocated.
You would have to swap in the entire front axle. I read here on SBP that the flat mounting plates are in the wrong spot. Again, more modification.
Good Luck. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Does not sound like a good swap to me. For the effort involved I would go newer | | | | | Joined: Mar 2004 Posts: 874 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 874 | I have a '52 3600. I also have a '55 1/2 ton rear. Believe it or not, the spring perch spacing on the 1/2 ton rear is almost identical to the spacing on the stock 3/4 ton rear. I don't know if it would be the same on yours or not. However, the inclination of the 1/2 perches looked like it would throw off the pinion angle of the 3/4 ton drive line. Also, if you got a hold of some AD half ton spindles, I believe they could be installed on the 3/4 ton axle by reaming the bushings. | | | | | Joined: Feb 2003 Posts: 58 Shop Shark | | Shop Shark Joined: Feb 2003 Posts: 58 | When I got the rear end it came with the 1/2 ton springs and the front springs also, but I don't recall getting the front axle.
Collecting is fun, as long as momma enjoys riding in them.
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