Can't get roter and hub to lock together

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cowboydaddy - 31 Dec 2005 21:45 GMT

I have a 1986 Dodge Power Ram 4x4. I had to change the roters on it and
now I can't get the hub and roters to lock together. They hook up
backwards from most vehicles. The hub sets on the outside of the roter
and the lugs go into the back of the roter into the hub. I've tried
everything from banging on it to trying to tighten the lug nuts up to
bring it together. My problem with that is the lugs aren't locked into
anything so they keep turning right along with the lug nuts. Any ideas
would be of great help. Thank you very much.

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Max Dodge - 31 Dec 2005 22:09 GMT

The wheel studs should press into, and be "locked" to, the rotor and then
the hub. If they do not, then they are worn out and will need to be
replaced. The only other location of difficulty will be the rotor centering
on the hub, so check the mating surface on the hub for rust and debris that
would keep that from happening. Especially be sure of this, since a wobbling
rotor (caused by debris between the rotor and hub faces) will lower brake
performance and cause more problems.

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Max

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>I have a 1986 Dodge Power Ram 4x4. I had to change the roters on it and
> now I can't get the hub and roters to lock together. They hook up
[quoted text clipped - 4 lines]
> anything so they keep turning right along with the lug nuts. Any ideas
> would be of great help. Thank you very much.

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Tom Lawrence - 31 Dec 2005 22:42 GMT

> backwards from most vehicles. The hub sets on the outside of the roter
> and the lugs go into the back of the roter into the hub.

The wheel studs should have a knurled ring around their shoulder. These
wedge themselves into the holes of the rotor. You may find it necessary to
place a stud in, then "seat" it with a hammer and a punch. You can then
press the two pieces (rotor and hub) together by installing and tightening
the lug nuts (possibly with some washers as spacers to make up for the wheel
thickness). An air impact wrench then makes this job a little easier,
because it will spin the lug nut fast enough that the stud seats itself
before it has a chance to turn out.

If you don't have that, a tie rod puller might prove handy - put the lug nut
on the stud a few turns (leaving a big gap), then use the tie rod puller to
try and pull the lug nut off (this will pull the stud into the back of the
rotor, and should wedge it tightly in place). You cna then tighten the lug
nut with hand tools, and the stud shouldn't spin.

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Bryan - 01 Jan 2006 20:51 GMT

> > backwards from most vehicles. The hub sets on the outside of the roter
> > and the lugs go into the back of the roter into the hub.
[quoted text clipped - 13 lines]
> rotor, and should wedge it tightly in place). You cna then tighten the lug
> nut with hand tools, and the stud shouldn't spin.

And just for insurance, it's not a bad idea to recheck lugnut torque after
you've driven the truck a few miles.
Bryan

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