got my 3.73's
95LT1Z
10-07-2006, 01:14 PM
i just got my car home this morning from getting 3.73 rear gears and was wondering if they usually take a while to get seated because they howl a little at slower speeds not a lot but u can hear it. just wondering if it will go away or needs readjusting? its not very bad though
666_speed
10-07-2006, 01:43 PM
Is everything new? The gears and bearings? They do need a couple of heat cycles to break them in, my new gears didn't make any noise when I had them installed.
95LT1Z
10-07-2006, 02:04 PM
i havnt talked to the mechanic yet he was closed when i picked it up so ill ask him monday what he all did as far as i know the bearings wernt replaced but i could be wrong
Mr. Luos
10-07-2006, 04:05 PM
They may whine a little more than stock.
They are probably stouter gears overall...and sometimes they make more noise.
Some people say if they are set-up properly they won't whine/howl at all.
I tend to think anytime you change things for more turning parts there may be some noise.
There is a break in period as well too. 500 miles easy driving from what I have heard.
Although my Moser 9" with 4.11's needed heat cycled twice. Then according to the instructions I could pound on it.
And I did.
They are probably stouter gears overall...and sometimes they make more noise.
Some people say if they are set-up properly they won't whine/howl at all.
I tend to think anytime you change things for more turning parts there may be some noise.
There is a break in period as well too. 500 miles easy driving from what I have heard.
Although my Moser 9" with 4.11's needed heat cycled twice. Then according to the instructions I could pound on it.
And I did.
FormulaLT1
10-07-2006, 04:09 PM
Some brands are prone to howling more than others. If they have a higher Nickel content its more commen.
95LT1Z
10-07-2006, 04:22 PM
ok thanks for the help
philly rs
10-08-2006, 01:17 PM
thats sum good info because im about to get the same gears put into my car....how does it feel when u mash on her?
2.2 Straight six
10-08-2006, 01:37 PM
it also depends on the cut angle of the teeth, the straighter the cut the more noise they make. a more helical cut will be quieter.
95LT1Z
10-08-2006, 01:51 PM
it feels real good breaks loose goin into second and i have 275/40/17 fuzion zri. its definatly a step up from the stock 2.73 i like em a lot
2.2 Straight six
10-08-2006, 01:52 PM
have you recalibrated the speedometer to account for the different final drive?
95LT1Z
10-08-2006, 05:14 PM
not yet it reads 80 when im around 60
Mr. Luos
10-08-2006, 05:33 PM
not yet it reads 80 when im around 60
:lol:
You should have seen how fast mine climbed when I changed from 3.42's to 4.11's. Took me a week or so to have the computer changed...I regret not grabbing some video of the speedo climbing. :icon16:
:lol:
You should have seen how fast mine climbed when I changed from 3.42's to 4.11's. Took me a week or so to have the computer changed...I regret not grabbing some video of the speedo climbing. :icon16:
blindeyed
10-08-2006, 08:17 PM
I wish I could get some 3.73's on mine.. but I have yet to find a recalibrator that will work with my ECU.
95LT1Z
10-08-2006, 10:40 PM
haha thats a good i dea i think my friends got a video camera
95LT1Z
10-09-2006, 03:41 PM
just a hypertech wont work with ur ecu?
philly rs
10-09-2006, 06:28 PM
i should be good with recalibrating the pcm, since we do tunes at our shop. i cant wait to do this!
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