mike_wiz
NAXJA Forum User
- Location
- Golden, Colorado
99 XJ 4.5" Rubicon lift up front Alcon lift in back. 4.3 Atlas II. I did not build this, it was my intention to not have to build another rig, just wanted to buy one and wheel it. When I picked it up it had a violent shake with the front end engaged. I had him knock some cash off the price as I assumed the Detroit was bad and I drove it home for 2 hours with no issues.
So I pull off the front diff cover and see the pinion gear is missing chunks of teeth. I replace the gearset and notice that the Detroit has a spun bearing and it wore down the surface. I roughed it up enough and tried it. Same result. I get a new Detroit figuring that must have been it. Same shaking happens.
So at higher speed turns (30-40) it vibrates a little but not bad, but when I slow down and take a turn in the neighborhood it is making an awful clanking sound and shaking like crazy in the front.
Here are some things I tried and the results.
Front atlas disengaged and both hubs locked - no shake
Front atlas engaged with both sides locked - shakes
Front atlas engaged with Pass side only locked - shakes
Front atlas engaged with Driver side only locked - shakes
Front atlas engaged with neither hub locked - no shake
I was told it has a "Durango" steering box? Could this be the problem? It rolls fine at 0-80mph without the front end engaged though.
Sorry for the long post I just wanted to get all the info I could out there. I am coming from the full size crawler world and this is my 1st Jeep (bought it as a family rig) but have plenty of experience building things. This just has me lost......Thanks in advance for any and all help!
Mike
Edit: I did all the tests on the new Detroit and it is locking/unlocking just as it should.
So I pull off the front diff cover and see the pinion gear is missing chunks of teeth. I replace the gearset and notice that the Detroit has a spun bearing and it wore down the surface. I roughed it up enough and tried it. Same result. I get a new Detroit figuring that must have been it. Same shaking happens.
So at higher speed turns (30-40) it vibrates a little but not bad, but when I slow down and take a turn in the neighborhood it is making an awful clanking sound and shaking like crazy in the front.
Here are some things I tried and the results.
Front atlas disengaged and both hubs locked - no shake
Front atlas engaged with both sides locked - shakes
Front atlas engaged with Pass side only locked - shakes
Front atlas engaged with Driver side only locked - shakes
Front atlas engaged with neither hub locked - no shake
I was told it has a "Durango" steering box? Could this be the problem? It rolls fine at 0-80mph without the front end engaged though.
Sorry for the long post I just wanted to get all the info I could out there. I am coming from the full size crawler world and this is my 1st Jeep (bought it as a family rig) but have plenty of experience building things. This just has me lost......Thanks in advance for any and all help!
Mike
Edit: I did all the tests on the new Detroit and it is locking/unlocking just as it should.