9" gear help

foxwood

Active Member
Joined
Jul 21, 2009
Location
Fort Mill
I recently got my cherokee with a d44/9 back from getting a set of 4.88s installed with a Detroit. When I drove it this week for the first time it had a loud howl coming from the rear. I took it back and was told my pinion bearing was starved from my pinion angle. But I measure my pinion angle at about 16* which to me is not super steep. I pulled the third tonight and found what I would call a lot of play in my carrier bearings since this is my first experience with gear setups I'm looking for some input before I take it back.
 
Not sure if you were trying to post a video of your issue, does not seem to work for me. The carrier should not have any slop or movement at all, it should only be able to rotate, as the bearing preload is fairly high on carrier bearings. If you can "see" any play in it, then it was not set up correctly.
 
Thanks Chris and Lee for helping him out guys. I looked at it last night it has about a 1/4 to 3/8s movement up down and side to side as if the carrier bearings are too small for the third.

 
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If this doesn't work it's on YouTube under the title Foxwood bad gears?

Thanks for the input guys.
 
Wow, she is pretty fubar. There are several different carrier bearings for a 9" depending on the case. Looks like whoever set it up has no clue what they were doing. If you bring it to Raleigh I can get you straight. ECGS 919-672-2705
 
See if there is an N stamped on the case if so its a 3.0 inch carrier bearing. As lee said it probably has 2.8 carrier inch carrier bearings in it. If not then the carrier bearing adjusters were not set properly.
 
WOW i would take just the 3ed back & tell then you want your money back & then take it to ECGS
 
This is pretty disturbing, since a 9 inch and a Toyota are the most simple diffs to set up.
 
foxwood said:


If this doesn't work it's on YouTube under the title Foxwood bad gears?

Thanks for the input guys.
Click to expand...

As others have said, looks like wrong size carrier bearings. I honestly can't believe anyone would let you pay them for that (or even do it for free). Thats unreal.

I'd love to see the pattern that they had that was "good enough" hahaha!
 
^^kinda what I was thinking, but I was a bit more cynical^^, that's some crappy luck and yes I'd be settling up with whomever built that for you. I you did it yourself, well some lessons come harder than others. Good Luck.
 
wow...how did someone even set the gear up without noticing this?!:shaking:
 
When u had my gears done he had set up my third then found the pinion support had a crack in the housing. So he sold me his and seems to have not realized the mistake. Thurs I took it back to him and he was like wow and fixed it for me that morning and made it right. Rides great now.
 
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