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[just-boot-it!]

Anybody know of any diff additives that reduce backlash? My XJ has always had a clunk on take up and I was wondering if you could buy something, I saw this on ebay but mine doesn't have a LSD  http://www.ebay.co.uk/itm/AXLE-ADDITIVE-TO-REDUCE-FRICTION-ELIMINATE-NOISE-JEEP-/331054508341?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Car+Make%3AJeep&hash=item4d1462e935#ht_1063wt_1018

[bigjeepzj]

diff additive won't help backlash that would need a diff rebuild
 Try using 140 sae oil if doing off roading or towing

[dieselj20]

I heard saw dust is good

[JamesH]

It could be a gearbox mount, don't go messing with the diff until you are certain.

[just-boot-it!]

Its definitely not a gearbox mount, its wear and tear on the axle from years and years of going from park to drive. I don't fancy paying out big bucks for a diff rebuild, unless a birtie knows somebody who will do it for cheaper??

[JamesH]

If you're certain then I'd say buy the parts from Rockauto, drop it off with Bubba and enjoy the newly rebuilt diff. I'd still open it up and check with a dial gauge before investing several hundred.