So pull off the diff cover, spray the ring and pinion with brake cleaner and then put on some of that gear pattern grease stuff? Do I have to do that soon cause man I don't have the energy to do that right now.

edit: I should mention that the shop did my gears thinks that a little noise is fine. You'll hear it more being that it is lower gears and they spin more.

 

If you have a whine or hum that comes in or worsens when the gas is applied or released, the pinion gear depth is out of spec. This is extremely important to get set up RIGHT. Ring gear backlash is actually a lot more forgiving as far as variation. It still needs to be in spec, though. I don't understand why shops jump on gears when it's obvious that so many people on here are having trouble with finding a reputable shop to do gears. There's really nothing to it to get it right but sheer experience. Either a shop has it, or they don't. Judging by the number of people on here having trouble, there are a BUNCH of shops out there who think they have what it takes but do NOT. I wish I planned on regearing mine. I would do one HELL of a write up on it and make it so that if you can pick up a ratchet, you can put gears in your Jeep. Honestly folks, this is not that difficult a job. I will admit, there is a level of skill involved, but with a few easy to follow tips, this CAN be done by the do it yourselfer. Dammit all, I wish I had a spare D30. I would do it then, just for a write up.

 

Then you need to be advertisin what shop did it. These folks need some help. Sounds like your shop got it RIGHT.

 

Hey Red, let me ask you this. do you think the JK gears are just more finicky to set up? I get the impression from the shop that originally did my gears and from reading about others on here that other vehicles didnt have to be so precise, I think. Unless its like you said that they just THINK they have what it takes to do gears or just dont care enough to get it perfect. If you throw the rubi lockers into the mix it really messes with them if they dont care/know what they are doing.

 

The answer to both the highlighted words above: absolutely NOT TRUE.
There is no difference between the JK gears and any other hypoid ring and pinion set in history.
It takes patience and self discipline to follow the book on this. Trial and error is the name of the game here until it is exactly right. A lot of shops don't have the time to assemble, check, disassemble, adjust, reassemble, check again, etc., etc. Unless they have done enough of these to be quick and precise, there will be no money in it for them. I'm with RedneckJeep. I wish I had an axle lying around just for the satisfaction of setting one up.

 

My 5.13s are the SAME as stock. I dont hear anything.

 

They only hum because they dont know the words......There, I had to be the first to say it.

 

I've heard the same excuse, that JK's are harder to set up, too. That's nothing but a marginally competant shop setting you up to tolerate their lack of competance or experience.

You are 100% correct that it is trial and error AND the patience to get it right. If a mechanic is being pushed by the shop to get it done and out the door he probably won't pull it apart to do the final adjustments that will make it right.

My 5.13's have about 5000 hard, mostly offroad, miles on them and are as silent as the factory gears were. But I know how much time the shop put into getting them right and I saw the patterns in the "paint".

If I was the OP I'd insist the shop pull things apart and clean the gears and do the paint test in my presence. They are beyond the point of being trusted. If I just had it done and paid by check I'd stop payment and if by credit card I'd dispute the charge.

 

Mine are quite. Always have been. 5.13 superior. Ive had them about a year.

 

I had them at the shop today, they pulled the front and rear apart to see what the noise was. Aparantly the sound was misleading.... it sure sounded like it was coming from the front, but instead was from the rear crush sleave not geting crushed or not getting crushed all the way. I hope they are not going to have issues. The noise is gone, hell all noise is gone. They did get almost 200 miles on them with the crush sleave not crushed. I wont sweat it, my shop stands behind their work, and superior waranties their gears for 2 years. I am sure any problems will show their nasty little faces before then.