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Thread: Lug replacement question

  1. #1
    Join Date
    Jan 2008
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    Lug replacement question

    Cross threaded a rear lug changing the tires back to street yesterday. Tried to chase the thread with a die and apparently removed too much material in the process rendering the lug nearly stripped. Not surprised as bad a shape as it was in to begin with.

    Q1: Do I have to pull the axles on an 8.8 to beat the old lugs out and press in new ones? If yes never mind answering 2 and 3.
    Q2: If I can beat them out with a mallet do I need to block the axle up in some way to prevent damage to any bearing from the impact of beating them out?
    Q3: Is there a way to use a large C clamp to press the new ones in with or is there a special press used to do this? I have also heard of people drawing them in using a lug nut.

    Thanks

  2. #2
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    I believe you can pull the caliper and rotor then beat the old one out with a hammer. Slide the new one on align the splines. Then put a lug nut on it and use an impact to draw it in to the flange/hub on the axle.


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  3. #3
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    Jan 2008
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    Cool! Thanks! Time to order some longer ARP lugs

  4. #4
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    Appears that if I replace the lugs with standard length I don't have to do anything but pull the caliper and rear rotor. If I want to do lengthened studs then the axles have to be pulled for clearance. Guess we will see come tomorrow night...if it doesn't rain.

  5. #5
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    If you pull the axles, press the studs in. You can cut off the old stud nearly flush with the axle to make driving out easier.

    Pulling in studs works 90% of the time, but that one time when the ARP and lug threads get messed up and you have to do it again, not fun.

  6. #6
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    Thanks. I don't feel like tackling pulling axles in the driveway so I am going to pick up stock replacements and install them since they don't require pulling the axle. This way as long as I ma not rained out I can do it myself quickly enough. I'll pick up a few additional and make sure I take my time pulling them AND use the shouldered lug nuts from the race stars so there are more threads involved taking the load. Thanks.

  7. #7
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    You can using a C Clamp and deep socket to press in the stud. We have also used a ball joint install kit to do the same at the track (Mid Ohio)....

  8. #8
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    Good thinking. Thanks.

  9. #9
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    Thanks for the pointers. Went in without any issues other than smacking my fore head twice in the wheel well.

    BTW - when the caliper and rotor is removed there is a clearance hole (at least on newer 8.8's that really help with this R/R. In fact I would almost guess there is enough clearance because of that access hole that the 3.15" ARP NHRA lug studs could have been put in without pulling the axle.

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