I am still trying to decide on the suspension upgrade parts for my 12 LS.....On most things I am settled on but I really would like to know the physical differences between the 302R and 302S Rear lower control arms.
They appear quite similar in the pictures and description but there is a HUGE price difference.
I don't mind spending the extra money if it is really worth it but I am struggling with this decision..please advise.

OBTW..the rest of the list is M-5300-T SPRINGS
M-4264-A ADJ PAN HARD
M-5650-A LCA BRACKETS

Just need to decide between the R and S LCA's

 

Sounds like you should drop an email to Steeda or Vorschlag, either one should know. I also got a same day response from Cortex when asking if their suspension upgrade parts would clear the stock Boss H pipe and side exhausts. Good luck.

 

Call the Ford Racing 800# and ask them directly ?

 

I'm guessing firmer bushings in the R

 

The S arms (M-5649-S) have spherical bearings.
The R arms (M-5649-R1) have poly bushings.

If you are going to drive your car on the street, you won't like the S arms. However, if you do want them, I have a lightly used set sitting in my garage that I would love to sell

 

Shoot me a PM with a cost and I'll let you know. Thanks