Dana 61
 

I'm rebuilding the 460 in my ,76 E-350
When I ran the Vin# it told me a had a Dana61 rear w/3.07 gears

I've heard of the Dana60 but not the 61

Whats the differnce, what applications are each made for?

Thanks

Dana 61
 

I beleive the 61 is just a light duty (for a F250) version of the 60 built as a semi floating. It doesn't have the full floating hub sticking out thru the rear wheel does it? Bob :-)

Dana 61
 

What would it look like, I dont know to muck about rear diffs

What would i look for?:-X20

Dana 61
 

Semi floating looks like a car or F150 rear end hub, when you take a hub cap off. Full floating has a extension of the axles housing that sticks thru the center of the wheel approx 6 inches and has about 8 cap screws that hold the axle shaft in place. Hope this helps a bit. Bob:-)

Dana 61
 

I won't have time to check until this weekend.

Thanks for your help!:-wink

Dana 61
 

>I beleive the 61 is just a light duty (for a F250) version
>of the 60 built as a semi floating. It doesn't have the full
>floating hub sticking out thru the rear wheel does it?


I have two 3.07 Dana's - one from a '77 F250 and the other from a '79 F250 - both are unquestionably full-floaters.

Semi-floating axles are identifiable by a "flat" axle flange inboard of the wheel lugs. Looks like a big car axle except with 8 lugs, and the wheel bearing is typically a straight roller bearing that rides directly on the axle shaft (axle shaft is inner race).

Full-floaters allow axle shaft removal without removing the diff cover or wheel, and use two tapered roller bearings per wheel. Advantage of a full-floating axle is should an axle shaft fail, that wheel will still hold up the vehicle.:-X22

Art

Dana 61