[freefallin2000]

99-04 Mustang Pro Series Chrome Moly Adjustable Lower Control Arms No Perch

These look pretty legit. Does anyone have experience with UPR control arms? Honestly, I won't be launching the car a whole lot. I just want something that will hold at the track and allow her to hook better.

They have a whole bunch of styles...some require the removal of the rear sway bar...if I remove the rear sway bar will it hurt/affect me cornering/daily driving?

[moneygreenstang]

I would get the set without the perch and keeping your rear sway bar

[Scott2001GT]

get one get spherical or both if you want. But the rear sway bar perch is fine but if your a track car you dont NEED to really but doesn't matter to much

[freefallin2000]

Sphereical meaning the bushing material? The one I posted has no sway bar mount so you are saying I should get these ones:

99-04 Mustang Chrome Moly Adjustable Urethane Lower Control Arms

Or these ones:

1999-2004 Ford Mustang Pro Series Lower Control Arms with Sway Bar Mount - UPR Products

or these:

99-04 Mustang Elite Chrome Moly Solid Urethane Lower Control Arms

I am confused...all this talk about spherical, single adjustable, double adjustable, shit idk which ones to get.

[I8ACMRO]

Spherical is the metal looking bushing on one end. Poly being the rubber looking one.

BTW UPR doesn't make a LCA with a sway bar mount and no perch. You could probably get the one w/ the perch and cut it off some how. Get the first one you posted in your 2nd post.

[freefallin2000]

But why does it matter if I get the ones with the spring perch or not. Its not like I am using them anyhow. And the point of going with a spherical bushing on one end and poly other is because.....??

[I8ACMRO]

Originally Posted by freefallin2000 But why does it matter if I get the ones with the spring perch or not. Its not like I am using them anyhow. And the point of going with a spherical bushing on one end and poly other is because.....??

It doesn't matter. It may a total of 1 pound to your car by getting one w/ perches vs. one w/o perches. Idk why they say to get the one spherical, one poly. I have the BMR LCA's and they are poly on both sides.

[ReverendDexter]

Because sphericals transmit a lot of noise, but polys don't articulate for crap.

By having a spherical on one side and a poly on the other, you get the freedom of motion the spherical provides without having all the buzz transmitted into the cabin.

Spring perch is if you're using stock location springs (i.e. no rear coilovers). You'd know if you didn't need the sway bar brackets - you'd either be using a rear sway bar that attaches differently, or have your rear springs rates high enough that a bar was unnecessary.

Adjustable for fox-chassis LCAs is in terms of the ride height. If you're using coilovers, you definitely don't need adjustables. Adjustables are designed so you can corner-weight your car, though people use them to just adjust ride height for aesthetic reasons.

[neverfastenough1]

Originally Posted by ReverendDexter Adjustable for fox-chassis LCAs is in terms of the ride height. If you're using coilovers, you definitely don't need adjustables. Adjustables are designed so you can corner-weight your car, though people use them to just adjust ride height for aesthetic reasons.

Man I was confused, then I realized you were talking about a different kind of adjustable control arm.

[neverfastenough1]

Originally Posted by freefallin2000 I am confused...all this talk about spherical, single adjustable, double adjustable, shit idk which ones to get.

Like he said about the bushings, although I would say there are alot of Foxbodies rolling around with double poly's. They aren't interested in twisties though, they are strictly muscle bound light to light or 1/4 mile cars. In drag racing, solids like the one you posted first will get you the most power to the ground fastest. Then poly's and then rubbers. Problem with a dd car is solids are not forgiving as far as road noise and defects go. Same reason people put solid motor mounts on a drag car. No deflection. Single adjustables are control arms that you have to take one end loose to adjust, like the ones you posted (most lowers are). Double adjustables are ones that have 2 jam nuts and a adjuster in the middle that you can adjust without disconnecting. Those will mainly be on uppers to make it easy to adjust your pinion angle at the track.