1320' suspension gurus please step in . . .

steveofiveo · Mar 28, 2013

I need your expertise/advice:

2011 M6 mustang
strange adjustables struts/shocks
steeda spring (I forgot which ones but the car is little lower (1.25 front/1.50 rear))
stock rear UCA and LCA
I have lower relocation brackets but have not installed them yet

The motor is 3 degrees up.The front is higher than the back.

The rearend housing is also 3 degrees facing up. (I am not sure if they are on the same plane though, I will check though (via diveshaft angle)

Rear Lower Control arms are facing down 8 degrees (front is lower than the rear a little)

Rear tires are center in the wheel well opening.

Here is my question:

I understand suspension from my old Fox body days (ie anti squat/ Instant center etc.) Do I need to get an new Upper Control arm and mount that would change the angle of the upper arm ? Or just get Lower control arms and use my relocation brackets to change that angle ?

Does the new 2011-2013 plot out the same as the older cars (measuring the bolt holes to the floor etc) or does the mount mess things up to the point it doesn't matter ?

Your recommendations please,

Thx

S

stangn · Mar 29, 2013

you should have 3-4 degrees of down pinion angle with poly bushings in control arms and 2 degrees down on solid bushings. there is plenty of info on line giving details on correct way to measure this. good luck.

steveofiveo · Mar 29, 2013

stangn said:
you should have 3-4 degrees of down pinion angle with poly bushings in control arms and 2 degrees down on solid bushings. there is plenty of info on line giving details on correct way to measure this. good luck.

Thnks.

I understand how to measure it, I was just wondering if the new 2011 upper mount changed anything is it same as before ?

S

stangn · Mar 29, 2013

It's longer and they say bolt position is in a slightly different spot. Pinion angle is pinion angle any way you look at it, from stock suspension to 4 link. Hope it helps