[Wade M]

Under hard acceleration (i.e. dropping the hammer from the start (enough to spin the tires), full throttle shifts), I'm hearing a pop from the rear end. I don't think its axle hop, and to be completely honest, I'm not sure its the half shafts slipping in the boots.

Ideas?

 

[PC4STOP]

Hearing it or feeling it too?

 

[bluebyeu05]

ive heard of guys having rear axle problems might want to check that out. they where replaced by dealer. hope this gives you an idea of where to start , i know there is tech sections you can check out too.

 

[2006 GTO M6]

Under hard acceleration (i.e. dropping the hammer from the start (enough to spin the tires), full throttle shifts), I'm hearing a pop from the rear end. I don't think its axle hop, and to be completely honest, I'm not sure its the half shafts slipping in the boots.

Ideas?

I had to replace my driveshaft (9,000 miles). The stock unit is really small and has rags for connections, not u-joints. I'm running a 3.5" aluminum shaft with real yokes/u-joints now. Mine popped from the day I got it. Pontiac just ignored it till one day it twisted under the car. I'm running 487HP (dynoed) but it's still a crappy driveshaft, it's probbaly the popping that you hear.

 

[flyer371]

Maybe it's your neck popping with all that power... LOL! Sounds like you've already got some good ideas to start with from the others.

 

[GRR_RRR]

Popping? Oh, sorry. I thought you said pooping.:rofl:

 

[DAH GTO]

There is a TSB for "Thunk in the trunk", I suspect that is what your hearing.