Any automatics bust an axle yet? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

BLWN SS · 07-05-2010, 07:41 PM

I am running 315 drag radials at around 500 rwhp and recently smoked the posi. I was wondering if anyone with an automatic has busted an axle yet. I'm researching the options for the diff. and am concerned that once I beef that up an axle may go. Seems its been all stick shifts having the problem so far unless I missed a post somewhere.

Apex Motorsports · 07-05-2010, 08:12 PM

Not that I have seen or heard, but that doesn't mean it can't or won't happen eventually. Rock'em till they snap, then upgrade.

VADER SS L99 · 07-06-2010, 01:53 AM

You broke the posi with a auto?! On top of that the posi let go before the axles? This is the first I have heard of this. Did you have stock gears or aftermarket? People have double your power on slicks with the stock center section. I would think the axles would snap way before anything in the stock center section on a auto trans car. To answer your question yes, many with auto trans have snapped the axles but no one has busted the diff. with a auto.

wbt · 07-06-2010, 02:21 AM

Quote:

Originally Posted by VADER SS L99

You broke the posi with a auto?! On top of that the posi let go before the axles? This is the first I have heard of this. Did you have stock gears or aftermarket? People have double your power on slicks with the stock center section. I would think the axles would snap way before anything in the stock center section on a auto trans car. To answer your question yes, many with auto trans have snapped the axles but no one has busted the diff. with a auto.

This has happened to quite a few folks with less HP. Jannetty has a fix ready to go for those that need. http://www.camaro5.com/forums/showthread.php?t=88108

Based on the info to date, the Camaro is still weak in the rear end.

1. Stock axles/CV joints break
2. Posi unit goes south for the "1 wheel peel"

IRS is beefier than the old 7.5 in the 4th gen. but still needs a lot of work to make it reliable for those interested in spending a decent amount of time at the strip.

I foresee quite a few solid axle swaps for the drag racers when they hit the market.

BLWN SS · 07-06-2010, 07:37 PM

Quote:

Originally Posted by VADER SS L99

You broke the posi with a auto?! On top of that the posi let go before the axles? This is the first I have heard of this. Did you have stock gears or aftermarket? People have double your power on slicks with the stock center section. I would think the axles would snap way before anything in the stock center section on a auto trans car. To answer your question yes, many with auto trans have snapped the axles but no one has busted the diff. with a auto.

Yes we did smoke the posi- getting the one wheel peel. We are not shock loading the axles like the manual tranny but I guess spinning those big sticky tires is enough to hurt the posi.

Supercharged SS · 07-06-2010, 07:45 PM

So far so good for me. I'm at 550/555 and have run both drag radials and now slicks. Even with 20+ 1.60 60's I haven't broke anything. Good thing I can only leave at 1200 rpm. Once the converter goes in and I can launch at 26 or 2800 all bets are off. I'll keep you guys posted.

FASST 1 · 07-06-2010, 08:54 PM

I have an L99. I think I broke an axle. Not sure. During a hard acceleration I felt a gear slipping. At first thought it was the tranny, now I think it was probably an axle. Not sure. Drove home with no problem.

BackinBlackSS/RS · 07-06-2010, 09:03 PM

Quote:

Originally Posted by FASST 1

I have an L99. I think I broke an axle. Not sure. During a hard acceleration I felt a gear slipping. At first thought it was the tranny, now I think it was probably an axle. Not sure. Drove home with no problem.

Why don't you know what happened? Did you just do this? You drove home and had no problem? So your saying maybe, there is not a problem? Sorry, but I'm confused.

FASST 1 · 07-06-2010, 09:08 PM

There is a problem. It is the tranny or axle. I just happended about 5 miles from home. I tried twice. There is a gear grinding sound and slipping. At first thought it was my tranny but now I think probalby an axle about to go. There is just enough left that it is not totally slipping. Does that sound like it could be an axle?

CFD · 07-06-2010, 09:08 PM

I have'nt brocken one yet but I'm still tryin'.

Wilburbeest · 07-06-2010, 09:40 PM

Definitely gonna be easier with an manual but with 500RWHP and 315 DRs I'm sure that you'll eventually break shit if you're launching it. As said above the rear ends on these cars still aren't that strong. I dunno if you have any wheel hop or not but if you do that's gonna increase your chances 10 fold.

FASST 1 · 07-06-2010, 09:58 PM

I have 565 rwhp and DRs. No wheel hop.

FASST 1 · 07-07-2010, 08:32 PM

Ok. Looks like I did not break an axle.

BLWN SS · 07-08-2010, 03:44 PM

Quote:

Originally Posted by Supercharged SS

So far so good for me. I'm at 550/555 and have run both drag radials and now slicks. Even with 20+ 1.60 60's I haven't broke anything. Good thing I can only leave at 1200 rpm. Once the converter goes in and I can launch at 26 or 2800 all bets are off. I'll keep you guys posted.

I'd definitely be interested what happens with the higher stall. I have been considering a 3000-3200 stall myself. For now I am regearing to 370's and thinking about having Jannety beef up the posi (which I've already smoked). I've had a tranny and engine retune from Vector which seemed to help but I can only get a 2.15 60' with the bad posi slipping.

07-05-2010, 07:41 PM	#1
BLWN SS Drives: Orange SS/RS W/ White Stripes Join Date: Feb 2010 Location: Colorado Springs Posts: 252	Any automatics bust an axle yet? I am running 315 drag radials at around 500 rwhp and recently smoked the posi. I was wondering if anyone with an automatic has busted an axle yet. I'm researching the options for the diff. and am concerned that once I beef that up an axle may go. Seems its been all stick shifts having the problem so far unless I missed a post somewhere.

07-06-2010, 01:53 AM	#3
VADER SS L99 Drives: 2013 A6 GT 5.0 Join Date: Nov 2009 Location: Edmond, OK Posts: 2,909	You broke the posi with a auto?! On top of that the posi let go before the axles? This is the first I have heard of this. Did you have stock gears or aftermarket? People have double your power on slicks with the stock center section. I would think the axles would snap way before anything in the stock center section on a auto trans car. To answer your question yes, many with auto trans have snapped the axles but no one has busted the diff. with a auto. __________________ BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.

07-06-2010, 08:54 PM	#7
FASST 1 Drives: Black 1SS Join Date: Apr 2009 Location: Pittsburgh, PA Posts: 442	I have an L99. I think I broke an axle. Not sure. During a hard acceleration I felt a gear slipping. At first thought it was the tranny, now I think it was probably an axle. Not sure. Drove home with no problem. __________________

07-06-2010, 09:08 PM	#9
FASST 1 Drives: Black 1SS Join Date: Apr 2009 Location: Pittsburgh, PA Posts: 442	There is a problem. It is the tranny or axle. I just happended about 5 miles from home. I tried twice. There is a gear grinding sound and slipping. At first thought it was my tranny but now I think probalby an axle about to go. There is just enough left that it is not totally slipping. Does that sound like it could be an axle? __________________

07-06-2010, 09:40 PM	#11
Wilburbeest Think With Your Dipstick! Drives: 1997 Camaro Z28 Join Date: Jul 2010 Location: Spokane, WA Posts: 185	Definitely gonna be easier with an manual but with 500RWHP and 315 DRs I'm sure that you'll eventually break shit if you're launching it. As said above the rear ends on these cars still aren't that strong. I dunno if you have any wheel hop or not but if you do that's gonna increase your chances 10 fold. __________________ - Willy 1997 Camaro Z28 (LT1/T56): K&N CAI \| Kooks 1 3/4" LTs \| 3" Custom Duals \| UMI LCAs w/ relocation brackets \| UMI adj. panhard bar \| UMI adj. torque arm \| Koni SA shocks \| Strano Springs \| Ram Powergrip clutch \| Pro 5.0 shifter \| skip shift eliminator kit \| WS6 Store rotors \| Hawk HPS pads

07-05-2010, 08:12 PM	#2
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,165	Not that I have seen or heard, but that doesn't mean it can't or won't happen eventually. Rock'em till they snap, then upgrade.

07-06-2010, 07:45 PM	#6
Supercharged SS Account Suspended Drives: 2010 Camaro Join Date: Feb 2010 Location: Sandy Hook, CT Posts: 11,926	So far so good for me. I'm at 550/555 and have run both drag radials and now slicks. Even with 20+ 1.60 60's I haven't broke anything. Good thing I can only leave at 1200 rpm. Once the converter goes in and I can launch at 26 or 2800 all bets are off. I'll keep you guys posted.

07-06-2010, 09:08 PM	#10
CFD Drives: 2SS/RS L99 BLACK Join Date: Apr 2010 Location: Franklin , MA Posts: 6,696	I have'nt brocken one yet but I'm still tryin'.

07-06-2010, 09:58 PM	#12
FASST 1 Drives: Black 1SS Join Date: Apr 2009 Location: Pittsburgh, PA Posts: 442	I have 565 rwhp and DRs. No wheel hop. __________________

07-07-2010, 08:32 PM	#13
FASST 1 Drives: Black 1SS Join Date: Apr 2009 Location: Pittsburgh, PA Posts: 442	Ok. Looks like I did not break an axle. __________________

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