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Rear diff


Troy8182

Question

I have a 2005 cv713 granit Mack that a different Teck put a rear diff in and ever since the 4 studs that the big bracket sits on will not stay tigh! I have tried thread locking them and no luck! I was wondering if anyone would have any idea of why or how to fix ! Never had this issue till he replaced it!

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Dont know about Mack but some trucks over here in Europe have torque to yeild bolts,also know as angle torque bolts.these bolts are single use.once torqued to yeild.the bolts cannot be used twice as they will not stay tight.something to look at.hope it helps.

Paul

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There is a service bulletin on this issue. I believe that some on the reman carrier housing had to be ground down in some areas so the bracket would fit flush up against the carrier housing. I’ll see if I can find it and attach it here . 

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