Still getting a binding popping noise on my libby in low range coming down a hill in first gear. Replace cv's both a year ago. A loud clunk is showing up in the situation. Also replaced leaking pinion seal a year ago and have the same leak again. Wondering if pinion gear is moving in the diff causing a clunk and premature wear on the pinion seal. Need help or advice before going to my mechanic. Don't want to get hosed.

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02 prelowered jeep kj limited select-trac
aftermarket rad (crack in stocker)
235/70/16 michelin LTX
Mopar hooks and Skids
BDS lift
dynomax super turbo

Doesn't sound like the diff at all, but the classic sound of a t-case chain slipping.

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2005 Black CRD KJ____Full GDE turbo kit, EHM, 6.5L GMCTD lift pump, euro tq conv, 31" Duratracs on 15x7 Procomps w/3.75"bs
2.5" lift, full skids, Super Skink Sliders, front JBA Steel Diff w/True-Trac___Powertax "No-Slip" locker rear
Tow Rig: 2003 Silver 2wd Dodge 2500 reg. cab 5.9 Cummins (highly modded with 550hp/1200tq+)

standard tranny? sure it's just not the slack in the gears?? We have a 6speed KJ at work that I"ve been driving for the past month. I'm used to it now but when I first started driving the 6speed it would clunk a lot in first when going real slow, but it's just normal noise.

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Civilisation exists by geological consent, subject to change without notice. -Durant