Thread: Need diagnostic help on SEVERE steering wheel shake

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BT---

scrub radius-----take a line thru the upper and lower ball joint and it should pass thru the center of the tire/pavement contact patch--

I once had a car that the wheels/balance weights hit the brake components.

Did you measure/examine the brake rotors???

It seems you are wondering around in circles and not eliminating possible causes--

does the wobble worsen/lessen with more /less brake pressure???

What are the results of the alignment??? actuall numbers for toe, caster, camber left and right---

How much did you lower the car???
I am assuming the car in your gallery is yours?

Originally Posted by jerry clayton

BT---

scrub radius-----take a line thru the upper and lower ball joint and it should pass thru the center of the tire/pavement contact patch--

Thanks!

Originally Posted by jerry clayton

once had a car that the wheels/balance weights hit the brake components.

Checked, not happening

Originally Posted by jerry clayton

you measure/examine the brake rotors???

on my list to do next

Originally Posted by jerry clayton

the wobble worsen/lessen with more /less brake pressure???

lessens with more brake pressure

Originally Posted by jerry clayton

are the results of the alignment??? actuall numbers for toe, caster, camber left and right---

Front Left / Right
Camber -1.4/ -0.7
Caster 1.6 / 2.5
Toe 0.12 /0.11
SAI (?) 9.3 / 10.1
Included Angle 7.9 /9.4
Cross camber -0.7
Cross castor -0.9
Cross SAI -0.7
Total Toe 0.23

Rear Left/Right
Camber 0.1 /0.0
Toe -0.01/ -0.15
Cross Camber 0.1
Total Toe -0.16
thrust angle 0.07

Originally Posted by jerry clayton

much did you lower the car???

4" front, 2" rear (not certain what stock levels were, this is from "pre-change" numbers)

Originally Posted by jerry clayton

am assuming the car in your gallery is yours?

yes...

Originally Posted by jerry clayton

seems you are wondering around in circles and not eliminating possible causes--

Completed many of the the suggestions, but have compiled quite of list of where else to look which will wait until next weekend (work days) wheels off today to be rebalanced at a specialty alignment shop today. Will check the rotors with a borrowed cal tonight.