Who is running a aftermarket rear that is quiet?
 

Who is lucky enough to have a aftermarket rear-end that is wisper quiet?
Is it a 9", 12bolt, or Dana? Who built it? What brand of gears?
:disgusted:

I am...AFTER having the gears removed, putting in new ones (richmond double diamond in black box) And paying to have the new gears set up properly. I'm running moser 12 bolt with ford ends, 31 spline, wavetrac, 4.10s. Moser did send me a new gearset & install kit at no charge , but after paying over $3k for the complete setup, I paid nearly another $500 to reinstall new gears. They wanted me to remove the entire rear end, crate it up, and ship it back to them. That would be on my dime, and if was determined they were at fault, it would be fixed at no charge. That seemed ridiculouse to me, told them it would be cheaper & much less work to just buy new gears. So thats when they offered to send tme the gears & install kit. Its sucks, but its near whisper quiet now. Could have been worse, they could have just said F U, send the whole housing back or live with it. What setup are you running?
Scott

Sad! This is becoming the norm. Gears are hit or miss, most being manufactured overseas now. I recently set up a 12 bolt wavetrac with US GEAR 390s, perfect pattern, howled like no tomorrow. Switched to Yukon Gear and Im real happy with the outcome. Might be worth while to pay for dyno service on a complete rear or center section, perhaps that will insure a quiet rear.

https://lateral-g.net/forums/showthread.php4?t=42701

The guys at moser laughed at me when I asked them who has the quietest gears, He basically said if you want quiet find a factory set. These are performance gears they will be noisy.

Good luck- Rich

Not a peep from my Strange 9", bought it locally from strange about 6 years ago, replace fluid every 2 years (overkill) but its been perfect.

9"
Tru Trak
SS Axles
Not sure what gear they use.

I had noisy gearsets a couple times. Then I found out I should not have used snythetic fluid from the start. Should have broken them in with non synthetic. Did that the next time and gears stayed quiet.

Had a LONG discussion about this with the Eaton guy -- absolutely NO synthetic gear lube! It's too slick. Hard to imagine but I gotta run with what the experts tell me.

My 12 bolt came from Moser with Motive 3.55s. Those didn't make it to the end of the street without screaming at me. Moser wouldn't warrantee it because the rear sat for a year and a half while the car was being built. The next 2 sets were put in by Pyle Brothers, Hoosier 3.73s and Motive 3.73s, both were loud and got worse as time went on. The next set were used GM off Ebay (quietest so far). They had a slight whine between 45 and 50 but have gotten worse. I've never used synthetic throughout all of this.

You may want to look at how your rear end is insulated through the bushings. To have 4 sets of gears be unacceptable leads me to think there is another problem with the rear end or your expectations are to high.

How was it set up? What was your backlash? How about your pattern?

It's hit or miss on the specs that come out. Had a few with no pre load at all. I even polished the gears on a few richmonds and it seemed to do the trick.

I just put in Moser 12 bolt with Richmond gears, Eaton Posi, non synthetic lube...I have a very faint noise at 70mph, but nothing I cant tolerate and it is very faint but can hear it..