diagnose this problem! please??
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
well ive been noticing that since my LCA's and PHB my rearend tends to want to float or jump back and forth somewhat?
Also a little chatter going on back there. And just recently gettin vibrations....not in the steering wheel but just noticing it mostly at around 2800-3000 rpms and after tc locks up at around 1000rpms. WTF is this?????? TIA guys
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
#2
Launching!
iTrader: (3)
Join Date: Mar 2006
Location: searching for the perfect driving line
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Well I'm just going to rattle off some ideas, hope it helps. I would make sure everything is still torqued down to spec, even the two rear bolts on the TA. Are the TA and transmission mounts still in good condition? Also, what kind of lca and phb are they, adjustable/nonadjustable, poly/poly, poly/rod or rod-rod? Just some good starting points.
#4
Launching!
iTrader: (3)
Join Date: Mar 2006
Location: searching for the perfect driving line
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I would start by getting under the car and making sure everything is still torqued down. IMHO you might as well replace the TA and transmission mounts also, they are cheap, about $40 for both. Not to get off topic but is Graham near Greensboro? I am moving there next week and wanted some insight about safety and emissions testing. Can you have side windows tinted and how dark? And good luck!
#6
Launching!
iTrader: (3)
Join Date: Mar 2006
Location: searching for the perfect driving line
Posts: 289
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Yes, torque arm mount and the transmission mount. My cars is a six speed but I noticed a difference when I replaced them. It was a little noisy for about the first week then settled down. These could be contributing to your problem but I would really make sure nothing is loose back there. A few bad pot holes and some hard launches could have loosened things up, it wouldn't be the first time. Thanks for the info!