dually rear axle

[damageinc85]

Ive got an '03 4wd crew cab dually and had a problem ordering wheel bearings and seals.I ordered them for a Dana 80 off Rockauto.com,it said they were for the drw trucks.Prob is I recieved the parts and compared them to what was in the rear hub and they absolutely dwarf whats in there.I was wondering what rear axle they actually have?Luckily I compared the parts b4 I tore it all apart.It has the ID tag on the lower left of the diff cover just like the manual says the Dana axle should have.Any help greatly appreciated

[Dieselpower497]

I had a similar problem with my truck. I couldnt figure out what the correct bearing part number was. I ended up having to revisit the dealer until i found a bearing that would work. I cant find the paperwork associated with this, but i remember the axle part number being a Dana R135 or something odd like that. I haope that helps a little.

[lubbockguy1979]

i thought that the rear axle on the f350 was a dana70. i may be wrong but that would explain the difference in girth of parts

[jimmy]

99 up F350 duallies have Dana 80 but it is unique and has larger bearings at hubs than Dana 80 Dodge and GM applications.
If Rock Auto has a universal Dana 80 parts guide then it will not be correct for Fords.

[Rooster]

99-04 should be a danna 80 with a 170mm center.......05 up has 200mm centers. Found this out when doing my rear axle bearing service as well as getting info on my future 19.5rims

[fordboyyfm]

write the axle code down off the door sticker or the tag number on the rear diff or the vin number and goto the dealer, i have never had a problem getting bearings at work.

[damageinc85]

Thanks guys,that explains the prob very well.