35s on 29 spline 8.25 with a spartan locker
Thread Starter
Newbie
Joined: Jan 2018
Posts: 12
Likes: 0
From: Virginia
Year: 1995
Model: Cherokee(XJ)
Engine: 4.0 HO
Thanks for all the great info guys. Can't wait to get these things installed. Do i need to run any special gear oil with the locker? I have found mixed opinions online. Some folks say heavier oil is better than origional spec. What do y'all run?
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Joined: Dec 2016
Posts: 3,540
Likes: 416
From: SoCal
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0
No you dont need anything special for it. I run the thicker stuff in mine. I think its 75w-140. I couldnt tell any difference from the thinner stuff. It still clicks just as loud in turns.
CF Veteran

Joined: Nov 2015
Posts: 3,636
Likes: 469
From: Southern OH
Year: 1997
Model: Cherokee(XJ)
Engine: 4.0
I run 85w140 gear oil in mine and they are quiet, the only time you can hear it clicking is when you are coasting around a corner with the windows up and the radio off, you have to be listening for it to hear it. I can feel the front locker slightly when I make a real sharp turn in a parking lot, it basically feels like a bad U-joint. Other than that they have very good street manners and work great off road.
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