Originally Posted by Flubyux2

I wouldn't weld on the hub of your axles. You'll end up undoing any heat treat process that was performed at the factory and/or causing embrittlement.

Get on ebay or call tire rack. They make hubcentric rings that do exactly what you're trying to accomplish.

I tried to pry away any contacting sheet metal on my car but it can only move so far. Beyond that, it's like it needs to be hammered on.

I seem to have a high speed vibration, at like 110mph+. I assume its pinion/driveshaft angle being out. Does the car need to physically be level to set this all up or can it be done on a non level driveway and jack stands?

Originally Posted by 96lt4c4

The heat treatment is really only needed at the spline, What we ended up doing was machining the center on the the axle smaller, we machined a new center to go over it. We heated the new center up and stuck it on the axle. Them mig welded it around the inside. When it cooled off we machined it all back down to size, we actually made the wheel fit the axle a little tighter.

I really should start a new thread about these Moser axles. Those guys have issues. The first pair I ordered, one of them was an inch too short. They sent me another axle. Them when we put them in a lathe they had all kinds of run out. The wheel flange/face of one of my new axles had .025 run out. We had to skim cut the face on both axles to make them run straight. Its no wonder guys complain about vibrations when driving on the street.

I ran my car on jack stands and now my wheels finally run true and straight with no vibrations, 100 + MPH, If I could get rid of gear noise it would be all good.

Originally Posted by Randolph Ziskey

I am really glad I read this because I was really considering pulling the trigger on a moser rear end. An m9 to be exact. This sounds like a headache.

Originally Posted by Randolph Ziskey

Bob left you a message thanks.

Originally Posted by Randolph Ziskey

Didn't get a call back....

Originally Posted by BlackLS1Bird

I also got my Moser with Wavetrac from Bob and it I didnt have the whining issues. I do believe that my driver side shaft is slightly bent though. Ater about 500 miles, I could hear a sound coming from it but it didnt sound like gear whine. Put it up on jackstands and ran it in 1st gear at idle and could see a slight deflection at the wheel lip. This caused the first set of bearings that were in it to destroy their seals and had to replace them. Also, this past year, the driver axle seal went out on me and I had oil gunk built up all over my wheel and brake on the driver side. I think all of this is due to that shaft. I will throw a new set in this winter and see if it fixed it.

Originally Posted by 96lt4c4

The heat treatment is really only needed at the spline, What we ended up doing was machining the center on the the axle smaller, we machined a new center to go over it. We heated the new center up and stuck it on the axle. Them mig welded it around the inside. When it cooled off we machined it all back down to size, we actually made the wheel fit the axle a little tighter.

I really should start a new thread about these Moser axles. Those guys have issues. The first pair I ordered, one of them was an inch too short. They sent me another axle. Them when we put them in a lathe they had all kinds of run out. The wheel flange/face of one of my new axles had .025 run out. We had to skim cut the face on both axles to make them run straight. Its no wonder guys complain about vibrations when driving on the street.

I ran my car on jack stands and now my wheels finally run true and straight with no vibrations, 100 + MPH, If I could get rid of gear noise it would be all good.

Originally Posted by Bob@BruteSpeed

It is not the norm, as I have sold over a million dollars worth of Moser rears over the years, and I've had very few problems with them. Many racers use Moser axles, and they certainly couldn't run axles that weren't true. Bob

Originally Posted by 96lt4c4

I have no reason to lie, I am just telling my experiences with them. I had problems a couple years ago when I first built my 9 inch, with the axles not running straight. Wheels wobbled. Fast forward to now, reordered axles with tapered roller bearings, take side load better, the first pair they sent me one was an inch too short. I called, they sent me an axle the correct length, my measurements were correct. Put the pair of axles in the lathe and the both had run out on the flange where the wheel bolts. It may not matter on a car with 15 inch wheels a slicks because the soft side walls, but on a street car with 17 inch street tires its a problem. As far as the eccentric not sicking out far enough, I am sure the little bit of welding we did on the flange side did not hurt the axle.

Here is the video I made a couple years ago that proves they were not straight. Maybe they harden them after the machining is done and it warps them some I dont know...

We didnt check the face of the flange on these. The ones I have now do run straight both ways, after we fixed them.

Check your Moser axles - YouTube

Originally Posted by Randolph Ziskey

Didn't get a call back....