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Old 04-06-2012, 12:46 PM   #15
Cpanthers85
 
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On a serious note... lol... Are these stronger than the stock gears? Here's why I ask.. I was talking to the shop foreman at a local dealer here and he told me they replace the rear axles on these cars all the time, and he recommended that I upgrade mine (once they break of course) but he said if I do that... then I have to worry about breaking the differential. Was he referring to breaking the gear or the actual pumpkin?

Thanks- sorry rear noob questions. Def made sure about the lube for the pumpkin first. lol
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Old 04-06-2012, 01:29 PM   #16
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The nice thing about these is that they are actually made by AAM, which is the same company that makes the stock gears. I would assume they are just as strong. Not sure about your other question about breaking the pumkin or diff.

P.S. She's not whining, so I guess they used enough lube
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Old 04-06-2012, 05:24 PM   #17
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OK, so I put some miles on these after work....man, I love 'em. The car should have come from the factory this way. I just took it easy and cruised around with a few bursts of throttle here and there. The difference is very noticeable. Out of all the mods I've done so far, this one takes the cake. Cruises fine on the freeway, and 6th gear feels much stronger. Acceleration was good before, but not it's just effortless.

Only downside is, after the gears, labor, install kit and fluids, it's pricey. Install took 8 hours. That's the only downside. Everything else is awesome
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Old 04-06-2012, 05:28 PM   #18
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I'm no gear expert, but I thought you were supposed to take it easy for a while after getting new gears?

Someone with more gear knowledge can jump in and help him out with break in advice.
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Old 04-06-2012, 10:11 PM   #19
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You can go through this one. I asked the same question. Doesn't seem like there is an exact science on it.
http://www.camaro5.com/forums/showthread.php?t=206356

I'm about to have some 3.91 LPE gears installed next week (I hope) at ADM performance. Andy said at least 3 or 4 heat cycles before really getting on it. That's getting the rear heated up with probably 15 - 20 min of driving and then letting it cool down. After about 500 miles I'll change the rear end oil again.

I'm basically going to take it easy with just normal driving for a good week or so. I'm going to vary from just driving around at street speeds plus get it up on the highway. I'll probably do this after work mostly letting it sit over night to cool down.

Like you mentioned these are basically like the stock gears. Made by the same company. It wasn't long after I got my car that I was putting the hammer on it and my stock gears have never been an issue.....even with cradle and rear end bushings.

I'm starting to chomp at the bit for my gears. I've been waiting a couple weeks already. I think it will make a nice mod along with what I already have.
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Old 04-06-2012, 10:17 PM   #20
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Quote:
Originally Posted by E.T. View Post
I don't hear any gear whine or anything, so that's good.

Is there anything I should listen for?

Do they make any noise as they break in?

Anything specific to do?
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Old 04-06-2012, 11:03 PM   #21
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Quote:
Originally Posted by caverman View Post
You can go through this one. I asked the same question. Doesn't seem like there is an exact science on it.
http://www.camaro5.com/forums/showthread.php?t=206356

I'm about to have some 3.91 LPE gears installed next week (I hope) at ADM performance. Andy said at least 3 or 4 heat cycles before really getting on it. That's getting the rear heated up with probably 15 - 20 min of driving and then letting it cool down. After about 500 miles I'll change the rear end oil again.

I'm basically going to take it easy with just normal driving for a good week or so. I'm going to vary from just driving around at street speeds plus get it up on the highway. I'll probably do this after work mostly letting it sit over night to cool down.

Like you mentioned these are basically like the stock gears. Made by the same company. It wasn't long after I got my car that I was putting the hammer on it and my stock gears have never been an issue.....even with cradle and rear end bushings.

I'm starting to chomp at the bit for my gears. I've been waiting a couple weeks already. I think it will make a nice mod along with what I already have.
That's pretty much what I've been doing...mostly city driving just going fairly easy on it, and a little highway cruising. I've done some moderate accelerating, but nothing too crazy.

You're gonna love the gears. The car feels lighter, and it just takes a little pressure on the pedal to get up and go. It feels more like you'd expect a 400 HP car to feel.
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Old 04-07-2012, 08:49 PM   #22
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Originally Posted by E.T. View Post
OK, so I put some miles on these after work....man, I love 'em. The car should have come from the factory this way. I just took it easy and cruised around with a few bursts of throttle here and there. The difference is very noticeable. Out of all the mods I've done so far, this one takes the cake. Cruises fine on the freeway, and 6th gear feels much stronger. Acceleration was good before, but not it's just effortless.

Only downside is, after the gears, labor, install kit and fluids, it's pricey. Install took 8 hours. That's the only downside. Everything else is awesome
is your car the ls3?
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Old 04-07-2012, 10:33 PM   #23
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is your car the ls3?
L99. I've read that the LS3 guys/gals should go with 3.90s or 4.10s since their tranny is geared differently.
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Old 04-08-2012, 08:10 AM   #24
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E.T. - Don't feel bad. Mine is getting 9 inches inserted into her rear in a few weeks courtesy of DSS and Heintz. I know she will be happy to take it too.

Here is what I have learned about gears as I started my quest:
Auto = 3.50/3.55 FI
Auto = 3.70/3.73 N/A
Manual = 3.91 or 4.10 (depends on your purpose and street driving needs and which brand of gears you want to run)
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Old 04-08-2012, 08:20 AM   #25
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A little dueling banjos in the background?
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Old 04-08-2012, 08:24 AM   #26
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Old 04-08-2012, 07:29 PM   #27
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