changing hubs

Hi Glen,

The reason to change is that the length of the hub is longer on the F-450 than on the E-450. I wanted to increase tire size if at all possible. The widest tire that I can currently use is a 225. I want to go to 235. It is a 4.56 rear end.

Ford did some crazy things. Go to a parts house or call the dealer and compare the part #s

When it comes to Ford differentials you need the tag number. There will be a tag that identifies which differential you have. It was and still may be for the same model Ford truck to have one of 3 or 4 differentials in it. The tag will be mounted on one of the pumpkin or cover bolts. Get the number and remove all possibilities of wrong parts.
Randy

Hi,

The problem is that I need to know what to ask for before I ask LOL. Ask the wrong question and the answer will be...a no.

Don,
Why don't You call or visit a Heavy Duty Repair Shop in Your area. They can tell You what can and can't be done.
Off the top I would say that it will depend on which Rear End is installed on Your Van. There are several possibilities.

Y'all might want to log on to TheDieselStop.com. Any and all questions can be found and answered there.