Stoopalini

Here's another vote for not tight enough LCA's. After installing my SLP subframes, I started getting a "clunk" out of the rear at times. I initially thought the subframes were loose, but it still happened after tightening them down. I then wrote it off to LCA binding and had my mind set on upgrading them ... then while installing a tunnel brace, I decided to look up the torque specs of the LCA bolts in my service manual and they were no where close. After tightening them to the correct ft/lbs, no more clunking.

So, if you didn't tighten the LCA bolts with the car at curb height (ie: not on jack stands) using a torque wrench, go back and do this 1st.

Thomas.

Hyperspeed97z28

Whats the torque specs for the lca's? do you know off hand??

Also the rear end pretty much felt like its binding up and trying to lock itself in the turns... So tiny pieces are normal in the rear as well ?

I'm gonna put fluid back in it tommorow and hopefully it'll be better for a lil bit at least...

Stoopalini

Torque specs for the LCA bolts is 74 ft/lbs. They need to be tightened with the suspension at curb height ... ie: no extension of the suspension.

Thomas.

bruecksteve

How many miles on the car?

Ekof96Z28

Can I lift the car by the rear end and do it? Or does the car have to be on the groud....
If so... will I be able to get my bolts... mines doing it too I also just installed LCAs.

Stoopalini

It's ok to lift the rear as long as you support the rear axle so the suspension does not flex.

When I 1st read the service manual, I thought it said they had to be tightened with the car on the ground. But I read it again and realized it states that the suspension must be at curb height ... in other words, not flexed out at all.

Thomas.

Hyperspeed97z28

my car has 90k on it but it isnt the stock rear, I bought it used sometime last year..

I've yet to add more fluid and drive it again..

Hopefully tommorow if I get out of work early enough..

GMH94Z28

Did you ever get this resolved? I am having a similar noise while turning and i just installed lca. Thanks

Hyperspeed97z28

It was the aftermarket LCA's I had in it.. Put the stockers back on and that solved it... Sold the car as well ...