[walt1120]

Originally Posted by v6mustang05 Ohhh fantastic. I really don't want any whine.... :/

you could always just crank up the music

[v6mustang05]

I want to be able to have clients in my car and talk to them...

Hmm... Maybe try some anti-whine oil once the break in period is over if it isn't fixed?

[9986paulk]

Oh you can't tell me it's THAT loud that it would be disruptive to talking. And my car had some whine from the factory at 45-50 cruise. On the other hand I don't think my motive 3.73s have any. But if its that super loud then theres a problem. A slight whine at a certain mph is nothing to worry about.

[GreenMustang00]

lol that loud????

On the rearend I have in now I just through the gears in without measuring for backlash lol and it's not even that noticeable

[walt1120]

Originally Posted by v6mustang05 I want to be able to have clients in my car and talk to them... Hmm... Maybe try some anti-whine oil once the break in period is over if it isn't fixed?

after the break in, im sure you could drain some of the gear oil and out and put in like 140w or whatever it is

[v6mustang05]

It isn't really loud... but I wasn't expecting to have to deal with it at all..

[09WhiteStang]

Originally Posted by v6mustang05 It isn't really loud... but I wasn't expecting to have to deal with it at all..

motives shouldn't really whine much because they are a softer gear. just make sure to stay under 50mph and keep varying speeds as you drive to break the gears in. After 500 miles, you should get your gear oil changed and the whine should decrease.
I have richmond 4.10s set at .0008" backlash and it whines decently around 35-40 mph and a little bit at highway speeds. Maybe you could ask the installer what the backlash was set to.

Originally Posted by walt1120 guy whose putting my 4.10's on told me all about it he said theres a number, i forget what its actually called, but he said for the 7.5" ford that 12,000 is like the factory tightness or whatever and 6000 is like dragstrip tight lol. so im gonna tell him to do like 8000.

yo i texted him and he said it was the backlash lol. itll be 8 thousandths of an inch not 8000.

[BlueScreaM]

Originally Posted by v6mustang05 It isn't really loud... but I wasn't expecting to have to deal with it at all..

Then burn tha Muthafuka down!!!!!

[ESG-642T]

Originally Posted by walt1120 whine is good if they were installed correctly, the tighter the guy put them in the more they will whine. the tighter they are, the more of a beating they can take. this is why track only cars have bad whine usually on the road. so what your hearing is absolutely normal, there is nothing wrong with hearing some whine, alot of people think whine means they weren't installed as good when it actually means they were installed nice and tight and will be alot more durable now if its a weird sound then somethings wrong haha but some whine isnt a bad thing.

I always thought it was from those damn nissan guys welding the diff together

Anyway my motives never whined....

[v6mustang05]

Yeah, he was trying to say that 1/3 of all motive gears whine...

I was like "well I hope these don't stay whiney. if you're whiney gear percentage is 1/3 I'm bringing you a bill from a better shop"

[walt1120]

Originally Posted by 09WhiteStang motives shouldn't really whine much because they are a softer gear. just make sure to stay under 50mph and keep varying speeds as you drive to break the gears in. After 500 miles, you should get your gear oil changed and the whine should decrease. I have richmond 4.10s set at .0008" backlash and it whines decently around 35-40 mph and a little bit at highway speeds. Maybe you could ask the installer what the backlash was set to. yo i texted him and he said it was the backlash lol. itll be 8 thousandths of an inch not 8000.

maybe ill go hardbody style and go .0006"

[ESG-642T]

Originally Posted by v6mustang05 Yeah, he was trying to say that 1/3 of all motive gears whine... I was like "well I hope these don't stay whiney. if you're whiney gear percentage is 1/3 I'm bringing you a bill from a better shop"

Well so far this little shop in my town, out of all my friends mustangs who have bought motives they are 100/100 :p

[9986paulk]

On the other hand...like I said, my stock gears had that slight whine at around 50 mph. So it doesn't necessarily mean it was a bad job. It can happen. Just like every performance mod you do, it isn't always going to work out perfectly.

And I do believe the numbers you guys are speaking of are thousandths, meaning 8 thousandths would be .008. Just a little note lol.

[walt1120]

Originally Posted by 9986paulk On the other hand...like I said, my stock gears had that slight whine at around 50 mph. So it doesn't necessarily mean it was a bad job. It can happen. Just like every performance mod you do, it isn't always going to work out perfectly. And I do believe the numbers you guys are speaking of are thousandths, meaning 8 thousandths would be .008. Just a little note lol.

yeah yeah, .008" .0008"...same thing

[v6mustang05]

I just dont understand why cars built with standardized parts should act different when the same standardized part is put in 2 different cars..

I got my car to be a nice looking/sounding car over performance in the first place. If it's all noisy I have problems, especially since he said NOTHING about the noise before the install.

[GreenMustang00]

Originally Posted by walt1120 yeah yeah, .008" .0008"...same thing

yea only difference is about .0072