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[89 Camper]

Thanks for responding. Dan, appreciate the long email. I know it took a lot of time and I appreciate that. Don't give up. Smile. Let's keep trying.

Door sticker Code is 32.

Do not know if axle is SRW or DRW. But selling dealer said it was dual because I did not like the way the hubcaps stuck out in the middle due to the hub flange. Service dealer looked at hub and said was dual. The hub sticks out four inches from the brake drum and then there is a quarter inch flange for the axle. The axle is bolted to the hub with eight bolts and there are eight wheel studs. Never noticed the length of the wheel studs except both front and rear looks the same.

Do not have the dual wheel spinner nuts. Brake drum is about four inches wide. Do not remember the holes that is shown in the Shop Manual for the hub assembly. There is no pin because the steel rim only has the eight lug holes and the center hole.

The wheel does center on the hub. It is a snug fit with no play.

As far as I know, the rear wheels are set up for single wheels. Until I know exactly what model the axle is and after reading your email, I think that it appears that only the hub sticking out for four inches makes it a dual wheel axle. My axle is about 75 inches end to end. About 60 inches between brake backing plate and each end has about four inches for brake and about three and one half inches in the hub for ratching nut. Length may not matter because drivetrain.com shows where they are shortening some Dana 80 axles.

The grease seal did not fit because the ID was to small. The larger seal did fit. That is when the mechanic said I had the heavy axle and the dual wheel axle when I later questioned him.

If your next question is will the dual wheel fit, I would say no because I only have three inches between the rubber and spring. Correction, that is two and one half inches. I previously told someone three but it is two and one half inches.

I know about the safety requirements but sometime it happens. Actually, I hope it happened in my case but the other way around. Hope I have the heaviest axle possible. Well, I can hope. :-)

By the way, do we get paid by the pound for these emails? :-) :-) double smile!!

Does the axle tube diameter (3.5 to 3.6 inches), the raised letters "80 ISU" and "42853" have anything to do with the identification?

I have tried several web sites but nothing I have found identifies my axle housing. Even the Ford Truck Shop Manual shows the differential to be a Dana 80 where the axle brake flange is shown to be a Dana 70. I know the manual can be wrong so don't give up on me. Keep trying.

Any more questions, comments, whatever -- please forward.

Thanks for info so far. I think we are slowly getting the answer. By the way, I also posted this question on the 7.3 Diesel site. You may want to look there.

Here's to the correct answer.
Ron