ford 105 rear differences.

[Gunz101]

i have a 2004 f250 I recently purchase to be my tow pig. I need to replace the rear end. but i am noticing on newer trucks they are a bit different and in typical ford fashion even the earlier 99-2004 t Some have a yoke on the pinion and some like mine have a flat plate. my question is how different are they? Can i use parts of mine to swap? have the same gears un both just different wheel hubs . First picture is like mine. Second pic is from a newer truck. and 3rd is the weird plate my has instead of a yoke on the pinion. Any help would be appreciated.

 

[shaggy10000]

in the 99-04 variety, the early ones had a strap yoke and the later ones had a flange yoke. The splines are the same so its swappable. But they do use a crush sleeve so not real convenient. Solid spacer kits are available and would be my recommendation anyway.
I know there were some internal differences also. I had ordered a diff cover from Ruffstuff several years back and the one i got from them didnt fit over the carrier caps. They re worked another one and made it right, but 6 months later i had someone from there contact me asking what year it was from. They ran into it again and were researching how to fix it. Probably just a casting difference.

 

[arse_sidewards]

There were a couple years somewhere in the '99-04 range where Ford ran slightly wider hubs and slightly more wheel backspace. I have no idea what years. I just know that the 2wd front hubs I grabbed from a junkyard didn't match the ones I had on the shelf.

Edit: Ignore that, just did some parts searching and one of the hub pairs I have on a shelf is from '05+

Flange yoke > everything else.

 

[total newb]

There is a difference in rotors and front wheel hubs so there could be a different in the rears aswell.

We all know the -3/99 vrs +4/99 had some wierdness already.
there are coarse vr fine thread studs but there is also a rotor hat thickness change 10mm vrs 13mm but i dont know exactly when that changed

I just bought rotors and bearing for my 12/99 350 and the bearing was said to run from +4/99-04 so it could also be a country of origin issue.

I was told the other day that all -3/99 trucks were mexican.

Could also be 250 vrs 350 or even possibly excusion or diesel gas.

There are a couple good threads on pbb and possibly here now specificaly about all pooperduty axles

 

[RustyC]

After 2005 the axles got wider. Wheel hubs, brake mounts are different. Gears and pinion flanges or yokes are interchangeable from 2010 and older.

 

[Gunz101]

I went ahead and went thru mine. Typical Ford BS. Crap changed ever few months just to screw the owner.

Thanks for the reply everyone.

 

['84 Bronco II]

The one thing no one else has brought up yet is that the '11+ axles have a 37 spline pinion, so the yokes won't interchange with the older axles.

 

[u2slow]

Anyone have a link to a vendor selling the companion piece/yoke for the pinion flange? Or a part number?