Dana 44 contact pattern and Questions

[AJ's01XJ]

Just would like some opinions on the first contact pattern i have taken. The stats are.. 1987 cherokee xj dana 44. Everything is new except outer pinion set up bearing. The pinion depth is at .0425" the back lash is around .008-.009". ALSO when i took apart the axle there is was no stepped baffle under iner bearing race. should i use the one that came in the rebuild kit or not? i have read you dont need to on the rears just the fronts. Any info would be great. Thank you.
[URL=http://s1312.photobucket.com/user/AJs01XJ/media/D44008-009bl0425pd_zps524ca446.jpg.html]

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[1987Comanche]

Pinion is centered but the contact pattern is high. Cut your backlash in 1/2 and roll it again.

 

[AJ's01XJ]

Okay thanks I will give that a try.

 

[IH392]

I think the pinion needs to go a little deeper. I would add .003", see if it looks better

 

[Digger87xj]

To me... It looks like you need the drop b/l to .006"-.007"

 

[Thehowler]

That looks like a good call IH392.

 

[AJ's01XJ]

Ok i was away for a few. But here is the new contact pattern im doing one at a time, so here is the new contact with backlash set to .0065-.007" pinion depth is still .0425". http://i1312.photobucket.com/albums/t523/AJs01XJ/D44drive0065-007bl_zps28ac310c.jpg

http://i1312.photobucket.com/albums/t523/AJs01XJ/D440065-007BL_zpsa2eb42b3.jpg
what do you guys think?

 

[AJ's01XJ]

[URL=http://s1312.photobucket.com/user/AJs01XJ/media/D44drive0065-007bl_zps28ac310c.jpg.html]

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hopefully this worked....

 

[IH392]

I still think the pinion is too shallow. I would add another .003" to the pinion. and check that pattern.

 

[AJ's01XJ]

Okay, sounds good. I will add .003" to pinion death and keep it at .0065-.007 BL again. And snap some more picks thank you

 

[blondejoncherokee]

BL might tighten up with the increased pinion depth so you might end shifting shims to open up BL after, or maybe not

 

[AJ's01XJ]

Ok folks here is what i have.. .006-.007 backlash and .0455" pinion depth. What do you guys think?

[URL=http://s1312.photobucket.com/user/AJs01XJ/media/D44006-007bl0455pd1_zps9e63ad7c.jpg.html]

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[IH392]

It's looking better, you're almost there. But I think you could go a little deeper yet. Take .003 shim out and add the .005 shim, so you add another .002" in depth. Hopefully then it would look perfect.

 

[AJ's01XJ]

Nice OK know I don't have any .005 I'm going to have to do some math to figure out the next combo of shims. I will get it tho. I'll do that tonight.

 

[AJ's01XJ]

Im still new to this but this looks better right? i think it looks good but i dont know what im doing back lash is .0055"-.006" (more .006" than .0055") and added .002" to pinion depth. The pinion depth is now .0475" up from .0455". So how are we looking?

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[Keekleberrys]

I'd run that in a heartbeat. You are way overthinking it.

 

[IH392]

Ditto, that looks great to me.

 

[AJ's01XJ]

YES! Thank you guys a ton. No i can finally finish it and start wheeling. Ohhhhhhh one more thing, do I need that stepped slinger behind the inner pinion bearing cup? There wasn't one in there when I disassembled it. But I have one in my rebuild kit. Should I use it? I know that if I do use it I will need to deduct the thickness of the slinger from my pinion shim stack. Thank you guys again.

 

[Digger87xj]

no oil dam in a low pinion diff

 

[AJ's01XJ]

Perfect! Thanks now time to find pinion preload specs and carrier preload specs and put it all back together! Unless you guys know them?