The suspension mystery continues, and I don't know where to go from here. (Page 4/6)
Franked AUG 13, 10:35 AM
You may want to try jacking up one end at a time and spin the tires, I had a high speed shake(doing freeway speeds , 50 up to 80) in my 65 chevelle, never figured it out until I let it idle in 2nd gear on Jack stands. The right rear had a bulge about 3/8 inch tall that wrapped around 30% of the tire.
I was on a long road trip, did 80-90 several times, that started on the last 2 days.
SCARY!

[This message has been edited by Franked (edited 08-13-2020).]

Threedog AUG 15, 12:09 AM
Alright y'all, I had a friend over and he filmed the car with my other cars dashcam.

It is bad! It turns out it is totally a bump steer issue.

Problem is, it does this with stock struts and springs, lowered springs, and the new coilovers with 300lb springs I got from FieroGuru.

Any ideas?

Here is the video..

https://drive.google.com/fi...rs1/view?usp=sharing
Patrick AUG 15, 12:41 AM

OMG !!!

Do your rear struts have any dampening ability at all?
Threedog AUG 15, 02:40 AM
It does this with:

- the new coil overs I got from the Fiero guru
- the stock springs and new struts
- the lowered springs and new struts
- the stock springs and old struts (that previously worked)
- the lowered springs and old struts (that previously worked)


What. The. ****.

[This message has been edited by Threedog (edited 08-15-2020).]

Patrick AUG 15, 03:08 AM

Going back to your first post...


quote
Originally posted by Threedog:

This started when I went to lower the car. I had it on lowering springs, I took it to the alignment shop, drove it home and had this issue.



Forgive me if you already covered this, but did you discuss this with the alignment shop afterwards?
Threedog AUG 15, 03:11 AM
Alignment shop might have messed up. But it was never driven before getting aligned and after the suspension was rebuilt.

Also, I just got it aligned a second time at a different shop.
creaky78 AUG 15, 06:47 AM
Have you checked the rear tie rods?

[This message has been edited by creaky78 (edited 08-15-2020).]

Threedog AUG 15, 07:10 AM

quote
Originally posted by creaky78:

Have you checked the rear tie rods?




Replaced.

It does it both with the old set(that previously worked) and the new set.
DLCLK87GT AUG 15, 08:20 AM
Wow, that's really bad!! It's like the motor or cradle is just slopping around but hard to tell from that angle. I'd like to see a video from the sides aimed at the rear wheels to see what's moving.

Edit to add, after watching that vid a few times it's hard to see but it sure looks like your rear tires are actually turning in and out.

Again I'd check the frame, cradle even the trans and engine mounts.

[This message has been edited by DLCLK87GT (edited 08-15-2020).]

ltlfrari AUG 15, 10:56 AM
Broken engine or trans mount or possibly a cracked cradle even ?