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F350 rear diff ID help?

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Old Nov 27, 2019 | 06:03 PM
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F350 rear diff ID help?


Would it be possible to swap axles in this type of rear diff to allow the use of 8 lug wheels? Asking for a friend... :-)
 
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Old Nov 27, 2019 | 06:19 PM
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Originally Posted by PRattenbury

Would it be possible to swap axles in this type of rear diff to allow the use of 8 lug wheels?
No.
You failed to mention the year. 1961/62 F350 could have a Timken Model B140 rear axle or a Spicer/Dana 70. 1963/66 F350 has the 70.

You cannot convert a Timken or the 70 by swapping axle shafts so that you can use 8 lug wheels.

You'll need a Dana 60 from a 1961/72 F250, but what will you do with the front axle? You'll need a 1961/64 F250 front axle.
 
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Old Nov 27, 2019 | 06:44 PM
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It's a 62 model. Just trying to find a way to get to 8 lug or other common lug pattern.
 
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Old Nov 27, 2019 | 07:31 PM
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What's the need for 8 lugs? Tube type rims? If tubeless you can find tires. I'm running YOKOHAMA Radials on mine. That's a DANA axle. You can swap gears in it. Brake parts are available, wheel cylinders and rubber line are available at Autozone, O'Reilly's etc
Drums aren't available except used. The front is easier. Parts plus drums are available for the front.
 
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Old Nov 27, 2019 | 07:42 PM
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From: Elizabeth
Originally Posted by PRattenbury
It's a 62 model. Just trying to find a way to get to 8 lug or other common lug pattern.
For a single wheel truck Bill named it, but that's a lot of work to reduce the capacity of your truck.

For a dual wheel truck you have few options, if it were easy the six lug dually wheels would be worthless. The complete rear axle assembly can be swapped without much effort.

The front isn't so easy. If I recall correctly, the bumpside hubs require longer spindle.

The most promising option I have seen is a thread on this forum where the outer six lug flange was turned/parted from the hub and a later model bolt on dually adapter bolted to the drum face.
 
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Old Nov 27, 2019 | 08:03 PM
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Originally Posted by PRattenbury

Would it be possible to swap axles in this type of rear diff to allow the use of 8 lug wheels? Asking for a friend... :-)
Do what I am doing doing a whole axle swap from a 1978 ford f350.
 
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Old Nov 27, 2019 | 08:36 PM
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From: Elizabeth
Originally Posted by Sillvain12
Do what I am doing doing a whole axle swap from a 1978 ford f350.
What is your plan for the front axle?
 
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Old Nov 27, 2019 | 10:35 PM
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Originally Posted by 62SY4
What is your plan for the front axle?
Not 100% sure yet. Working from the rear axle forward. I know that I have the spacers purchased and in my garage to switch it from 6 to 8 for now. Down the road once I get it back running. 1 thing at a time for the truck.
 
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Old Nov 28, 2019 | 06:38 AM
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For the rear diff would just about any year F350 dually rear end work? Would I get rear disc brakes if I got a newer year diff?
 
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Old Nov 28, 2019 | 07:15 AM
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Originally Posted by PRattenbury
For the rear diff would just about any year F350 dually rear end work? Would I get rear disc brakes if I got a newer year diff?
It is easy to convert the rears to disk. Ruffstuff has a kit to do it.
 
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