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Old 05-30-2015, 10:56 AM   #41
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Just got my rig back, shop replaced the rear ring and pinion. It is much quieter but still has noise at highway cruising speed. It of course goes away if i pull it out of gear, accelerate or let off the throttle.

Shop explained it away as "normal'"with a higher ratio gear set. Of course they did this the last set as well. Shop Manager did say the pattern didn't set right on the first set.

I have a feeling its just going to get louder as it did before. At this point it has about 100 miles that the shop put on the gear set. I may take it somewhere else to take a look.
Is this a car/truck shop or BS manufacturer?
My vote is for the latter option.
I will assure you any noise you have now will not go away later.

File a complaint with the BBB and find another shop to redo the work again.
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Old 05-30-2015, 11:23 AM   #42
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My vote is .......same guy, same shop of course got to do it again..same answer...noise!
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Old 05-30-2015, 04:31 PM   #43
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It's not a shop it's a big shop they do a lot of drive train/Axles on motor home busses and fleet trucks.
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Old 05-30-2015, 04:52 PM   #44
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Rear end wont make any noise unless there is something wrong.Pinion and ring gear alignment bad pinion bearing bad carrier bearings. Well maybe a Detroit locker or weld up spiders ;o)
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Old 05-30-2015, 09:56 PM   #45
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Originally Posted by coffeeguy57 View Post
It's not a shop it's a big shop they do a lot of drive train/Axles on motor home busses and fleet trucks.
That probably hire U of O students just learning the trade... Talk to the guys in Springfield that own/operate Classic Auto Body.......or, there's a Chrome shop there also where one might pick up on where to go.
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Old 06-01-2015, 09:20 PM   #46
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That probably hire U of O students just learning the trade... Talk to the guys in Springfield that own/operate Classic Auto Body.......or, there's a Chrome shop there also where one might pick up on where to go.
I've seen the guys in there. This is big shop, I will check with above soon. there is another shop close to my work I may check with first.

Ill be honest calling around I got very few call backs when I was looking to get this done to begin with. I left 8-10 messages only received 3 call backs. Mos of these T were from trans shops 4x4 shops etc . Some of whom advertised diff work and one referral who didn't even call..

Its hard to find some one that wants to do more than the simple things that have good book time for a relatively easy non technical Job. I wish I had the tools to do this. I would give it a run.. Maybe i would do it more than once but no one to blame but me!
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Old 06-01-2015, 09:33 PM   #47
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Practice makes perfect....but 'ya, it does take special tools to do it right the first time....and even then, having worked the 'heavy' line in dealerships,not all gear sets are equal...had factory gears that would not set-up...and if it was a van and had any noise, it was a huge echo chamber.
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Old 06-01-2015, 09:34 PM   #48
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I believe the techs doing this have set this up to have good pattern. They have pics. I don't believe they want to do this over ad over. They way it sounds I feel like I am going to have a duplicate of the first set. It is quieter now but the last set was not nearly as loud either, at first. Then it got little louder, and started happening under different load conditions.

What could cause the good initial set up pattern lead to the pictures I posted at the top post indicating excessive heel contact after a couple thousand miles. I do believe they "think" they have it set up correctly...what are they doing wrong what are they missing?

FYI - Pinion & carrier bearings were replaced with new ring and pinion (on invoice) I was told the bearings were replaced again with the second set..
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Old 06-01-2015, 09:38 PM   #49
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i would say inexperience tech doing the work.

if he said he had a good pattern on the first set then he probably don't know what to look for and why it'd noisy
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Old 06-01-2015, 09:43 PM   #50
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Practice makes perfect....but 'ya, it does take special tools to do it right the first time....and even then, having worked the 'heavy' line in dealerships,not all gear sets are equal...had factory gears that would not set-up...and if it was a van and had any noise, it was a huge echo chamber.
I hear you on the "Echo Chamber" I know its resonating big time. Its big against the Glass / dash area for me; it "rings". I'm sure I could pull out my RTA on analyze the frequency and amplitude. This has been my specialty the last...oh my - almost 20 years now.
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