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-   -   Do Rear Upper and Lower Control Arms Really Make a Difference? (http://mustangforums.com/forum/s197-handling-section/702032-do-rear-upper-and-lower-control-arms-really-make-a-difference.html)

maxmustang 10-10-2013 02:05 PM

Do Rear Upper and Lower Control Arms Really Make a Difference?
 
Will these 99 dollar Rear Lower Control REALLY help with my cornering and launch? And would I have to buy the upper control arms as well?

http://www.americanmuscle.com/sr-lca-0514.html

AMDanBailer 10-11-2013 12:15 PM

Quote:

Originally Posted by maxmustang (Post 8293269)
Will these 99 dollar Rear Lower Control REALLY help with my cornering and launch? And would I have to buy the upper control arms as well?

http://www.americanmuscle.com/sr-lca-0514.html

Absolutely! The stock control arms have a ton of slop in them and will cause some wheel hop and won't let you put the power you currently have down to the ground.

A set of SR Performance Upper & Lower Control arms will definitely do the trick. You'll notice big gains in your 60 ft time, less wheel hop and much better traction. The UCA will also let you adjust your pinion angle, if your Mustang is lowered or you have plans to lower it this is must have. If not, your pinion angle will be off and you could experience some vibrations.

I hope this helps! Please let me know if you have any questions or need some assistance.

-Dan

Derf00 10-11-2013 12:23 PM

The biggest impact the arms have by replacing them are the type of bushing material they use. OEM (Stock) use rubber. Rubber is great for reducing NVH and a comfy cushy ride but it also leads to a lot of slop like AMDan said.

Polyurethane bushings have long been used to reduce that bounciness but at the cost of increasing NVH and making things a bit rougher. To the performance enthusiast this is normally a minimal negative to what is otherwise a significant positive (better handling).

For better corning ability (and depending on your budget) you should really look at a Watts Link system.

maxmustang 10-11-2013 04:10 PM

Quote:

Originally Posted by AMDanBailer (Post 8293662)
Absolutely! The stock control arms have a ton of slop in them and will cause some wheel hop and won't let you put the power you currently have down to the ground.

A set of SR Performance Upper & Lower Control arms will definitely do the trick. You'll notice big gains in your 60 ft time, less wheel hop and much better traction. The UCA will also let you adjust your pinion angle, if your Mustang is lowered or you have plans to lower it this is must have. If not, your pinion angle will be off and you could experience some vibrations.

I hope this helps! Please let me know if you have any questions or need some assistance.

-Dan

If my car isn't lowered should I still buy the upper control arm?

wcgman 10-15-2013 01:38 PM

I've bought 3 sets of those very same LCA's. Wheel hop = gone. Launches are definitely better. As you are not adjusting the height of the car, there should be no need to use an UCA because the pinion angle of the drive shaft is not changing one bit. That being said, I've also lowered every car that I've done LCA's on to varying degrees, have never gotten any vibration nor have I gotten the pinion angle out of spec.

UPRSharad 10-18-2013 07:37 PM

The UCA helps just as much as the lowers. Anytime you upgrade the soft rubber OEM bushings, it's an improvement.

AFMarksman 11-23-2013 03:15 AM

Which LCA do you recommend?

lawrencecar1 11-23-2013 09:07 AM

Quote:

Originally Posted by AFMarksman (Post 8312630)
Which LCA do you recommend?

i have these from bmr:

http://www.bmrsuspension.com/?page=p...&productid=156

UPRSharad 11-23-2013 09:28 PM

Quote:

Originally Posted by AFMarksman (Post 8312630)
Which LCA do you recommend?

Here's what I'm running, and they work quite well. Plus they're Made in America and they carry a Lifetime Guarantee:

http://www.uprproducts.com/mustang-c...ushing-05.html

flash_xx 11-25-2013 03:17 PM

I'm running these at the bottom:

http://www.latemodelrestoration.com/...r-Control-Arms

This one on top:

http://www.latemodelrestoration.com/...er-Control-Arm

Fit is perfect and ride is not too harsh but definitely harsher than before. Car feels much better now but then again I also went with Koni STR.T shocks which make a world of difference.


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