dana 44 help... PLEASE

[351wExplorer]

how do i know what cut i have on my axle... dana 44 out of a 78-79 bronco, also which splines are most common in that era, any help would be appreciated as i am lookin to regear soon

 

[Robb]

reverse cut 30 spline

 

[351wExplorer]

wow that easy huh... thanks robb


now this is a dumb question, but looking on ebay i am seeing a few 4 series posi-trac carries for d44 rear ends.. these wouldnt work up front would they?

 

[splodo49]

Nope.

 

[351wExplorer]

are you sure because now that i look and think about it, it appears that the carrier, is bi-rotational, i mean reverse or standard i dont think it would matter because you could/would bolt a new ring gear to it, obviosly a reverse rotation in this application

 

[splodo49]

i guess as long as the spline count is the same. Maybee one of axle gurus could step in on this one(robb). Wish i could think of someone.

 

[james t]

The carrier never matters, only the gears. Its the same carrier no matter if its low pinion or high pinion.

 

[splodo49]

as long as its the same spline count right?

 

[Creager]

technically it will work just like what jamest said

is it helix gear driven posi unit? if it is then you definatly want to stay away from a unit designed for standard rotation.

why?

because the way those things work... In FORWARD motion the helix gears use (or force themselves to) the carrier shell to slip/lock. In REVERSE motion the helix gears force upon the side gears to slip/lock, which makes it notably weaker. That also explains why you can tear up a (rear) posi unit breaking the tires loose in REVERSE. Putting this unit in a front axle bascially puts it in REVERSE motion all the time...

So yes it will work, but depending on what kind of unit it is you might just be installing a time-bomb, ready to explode and take your front axle with it.