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Hey Everyone,
I'm, about to do my rear diff fluid change and had a question about the Trans-X brand friction modifier for any of you DIYers. I saw on the back of the package it says Not For Use In Jeeps with QuadraTrac/Drive. Has any one had any problems with this? I put mobil 1 in the front diff should i just opt. for the royal purple at 18.99 a quart and not worry about it? Thanks for any help. BTW i have a 3.7L with QT1
 

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if it says not to use it ...I wouldn't use it...you have the QuadraTrac...and its spelled out on the label..
 

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I wouldnt use that brand if it specifically says not for jeeps with QT/QD. Honestly If I were you I would waste the money on friction modifier additive since you have the 3.7 with QT I. Id recommend just throwing some mobil 1 in the rear as it already has friction modifier additive in the gear oil.
 
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