[SS1LETOM]

Hi all, '17 SS 1LE. All stock, 7500 miles.

I noticed the other day when going on an exit ramp harder (maybe 3rd/4th gear at 50-60 mph), that the car gave off a slight rumbling feeling. Seemed to be coming from the rear. I only notice it when I push harder on these ramps, not when just cruising on them.

Now, when I autocross the car and have say a PTM setting of Sport 1 on, I can feel a similar rumble from the rear when pushing through a turn, which I assume is the PTM doing it's job.

But that can't be what I'm feeling on the exit ramp as I am in Tour mode. I'm not pushing hard enough where the SC/TC should be kicking in, and I don't think this would be the eLSD doing it's thing? Dunno, maybe tires (stock SC3)?

Car drives great otherwise...just curious if anybody had any input on the rumble I'm feeling under those conditions.

[WhiteMale]

Checked diff fluid level?

[SS1LETOM]

Originally Posted by WhiteMale

Checked diff fluid level?

I was just changed about 1000 miles ago. I did it myself, it's not low.

[Kmeleon]

This is exactly what I felt the last time on track, it's always when taking long hard corners with Alot of mechanical grip. Here's my thread I posted last month in the track forum... https://www.camaro6.com/forums/showthread.php?t=591431

The consensus seems to be the tires. It very well could be, just strange that I didn't notice it in previous track days. We'll see if it gets worse as the tires wear.

[SS1LETOM]

Originally Posted by Kmeleon

This is exactly what I felt the last time on track, it's always when taking long hard corners with Alot of mechanical grip. Here's my thread I posted last month in the track forum... https://www.camaro6.com/forums/showthread.php?t=591431

The consensus seems to be the tires. It very well could be, just strange that I didn't notice it in previous track days. We'll see if it gets worse as the tires wear.

Interesting, but I kinda thought it was the tires. It's an odd sound/feeling, not that loud either, as I said, like a "rumbling" sound, and I can feel it too a little.

Only when I push through a long, fast turn I notice it...

My tires are the original tires, so I guess they could be the culprit.

Sent you a PM.

[appleman22]

I had a rumble like this and two new rear axles fixed the issues

[SS1LETOM]

Originally Posted by appleman22

I had a rumble like this and two new rear axles fixed the issues

I would think we are hearing different noises...

Sent you a PM.