Rear end swap?
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Joined: Jul 2005
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Rear end swap?
I have a 1950 F-5. I must get my speed up to 55-60mph (from 30-35!)
Larger tires won't do it. Has anyone ever swapped the original single-speed (6.66) rear end for a late-model one-ton dually rear. If I put the dually rear end under it, it will be a little too wide. I can't find anyone who can cut down (narrow) a dually. But almost everyone I called can narrow a single-rear wheel axle.
I GUESS THIS IS MY QUESTION: Do you know of any problem with swapping a 3/4 ton rear, then adding adaptors to allow dual wheels on it? (mostly for the "look").
Thanks guys for your expertise.
Brad
Larger tires won't do it. Has anyone ever swapped the original single-speed (6.66) rear end for a late-model one-ton dually rear. If I put the dually rear end under it, it will be a little too wide. I can't find anyone who can cut down (narrow) a dually. But almost everyone I called can narrow a single-rear wheel axle.
I GUESS THIS IS MY QUESTION: Do you know of any problem with swapping a 3/4 ton rear, then adding adaptors to allow dual wheels on it? (mostly for the "look").
Thanks guys for your expertise.
Brad
Roast em' if you got 'em
Joined: Mar 2005
Posts: 21,989
Likes: 9,853
From: Rio Rancho, NM
Brad,
I can't see any difference between narrowing a dually rear differential as opposed to a single axle diff. cutting the housing down shouldn't be a problem, maybe getting the axles is the hard part. You might start checking with shops that specialize in drag racing, maybe do a google search on "narrowing a rear end" and see what comes up.
I don't have any experience with the adapters
Good luck to you
Bobby
I can't see any difference between narrowing a dually rear differential as opposed to a single axle diff. cutting the housing down shouldn't be a problem, maybe getting the axles is the hard part. You might start checking with shops that specialize in drag racing, maybe do a google search on "narrowing a rear end" and see what comes up.
I don't have any experience with the adapters
Good luck to you
Bobby
Laughing Gas
Joined: Mar 2005
Posts: 1,109
Likes: 9
From: Thornton, Colorado
I may be wrong on this, but I believe that if you are looking at the 80's or later rearends there are two types. The first are normal 1 ton rear with long lugnuts for dual wheels, and the other are Narrowed for Cab and Chassis models. If you could find a Cab and Chassis model it might be just what you need.
Broomfieldbum
Broomfieldbum
Posting Guru
Joined: Feb 2002
Posts: 1,392
Likes: 2
From: Michigan
What I'm planning on doing with my F-3, is getting a hold of a 68-72 Dana 60 axle from an F-250 or 350. From my understanding is that these are the right width for our trucks and also a virtual bolt on part.
When I start to hunting for my axle, I may even look at a Dana 70 (if they have one) which would be a 1 ton, dually rear end. You may want to try scrounging up one of these.
When I start to hunting for my axle, I may even look at a Dana 70 (if they have one) which would be a 1 ton, dually rear end. You may want to try scrounging up one of these.
Hotshot
Joined: Jan 2001
Posts: 16,882
Likes: 3,124
From: SE Wisc. (the Rust Belt)
Brad,
What year duallies are you looking at? The rear axles from a pre-72 1/2 ton is just an inch wider than the axle in a Bonus Built 1/2 ton and pretty much a bolt in job. Following that logic, maybe a pre-72 one ton axle would be very close to a Bonus Built F-5. I don't know this as fact, just assuming. Trying to give you somewhere to look.
What year duallies are you looking at? The rear axles from a pre-72 1/2 ton is just an inch wider than the axle in a Bonus Built 1/2 ton and pretty much a bolt in job. Following that logic, maybe a pre-72 one ton axle would be very close to a Bonus Built F-5. I don't know this as fact, just assuming. Trying to give you somewhere to look.
Senior User
Joined: Jul 2004
Posts: 362
Likes: 0
From: Minnesota
A Chevy 14 bolt Cab and Chassis rear axle bolts right into a 53 F350. Mine came out of a 79 C30 Dually The spring perches are in the correct location and the axle appears to be the same width. The 14 Bolt is a lot heftier than a Dana 60, so it may be a better choice for an F5
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Senior User
Joined: Jul 2004
Posts: 216
Likes: 0
From: North Branch, MI
I just did swapped in a dana 60 out of 69 f250 into my 53 f250 and it was a bolt in opperation. Everything fit perfect. Of course the $75 axle ended up closer to $200 time I went through the brakes, would you believe there are 3 different size brake shoes used on that axle. Of course the ones I have cost more than twice as much as the other two. It's only money, if we want an inexpensive past time we should try something else.
Bob G
Bob G
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