UMI Lower Control Arm Questions?

[oldsofb]

So I have the Hotchkis upper A arms to use with the GM B-Body spindles to get the 12" rotor upgrade. With that said, I've been looking at the UMI lower control arms. They come in regular ball joint and 1/2" taller which "improve spindle height, lower center of gravity and reduce bump steer"

Here's the question. Can the 1/2" taller ball joint lower arm be used with the B-Body 12" rotor conversion?

I have the BAER adjustable bump steer tie rod ends, as I've been told that the B-Body spindles throw off the tie rod end angle. I'm wondering if the 1/2" taller ball joints would help with that.

Hutch

 

[pontiacgp]

you want the tie rod angle to be the same as the angle of the lower control arm. If the adjustable tie rod can't adjust enough for the 1/2" taller ball joint you can always heat up the steering arm to bend it down a bit to get your angle.

 

[UMI Sales]

So I have the Hotchkis upper A arms to use with the GM B-Body spindles to get the 12" rotor upgrade. With that said, I've been looking at the UMI lower control arms. They come in regular ball joint and 1/2" taller which "improve spindle height, lower center of gravity and reduce bump steer"

Here's the question. Can the 1/2" taller ball joint lower arm be used with the B-Body 12" rotor conversion?

I have the BAER adjustable bump steer tie rod ends, as I've been told that the B-Body spindles throw off the tie rod end angle. I'm wondering if the 1/2" taller ball joints would help with that.

Hutch

Good morning.

The UMI lower arm has the G body tall ball joint in exact factory location. So, if your B-body spindles accommodate a G-Body lower ball joint you should be a-ok.

Bump steer is a highly variable problem and solution but with the Baer Trackers (and then in a few weeks, the UMI version) you should be good to adjust...

 

[oldsofb]

Thank you.

I was hoping UMI would respond. I'm not sure if you know, but you're having a sale. I guess I can add them to the cart.

 

[UMI Sales]

Wonder why nobody told us about this...lol

Now's the time to buy!!

Craig

 

[UMI Sales]

Thank you.

I was hoping UMI would respond. I'm not sure if you know, but you're having a sale. I guess I can add them to the cart.

I heard about the sale. Thanks for choosing UMI!

ramey

 

[pontiacgp]

Another advantage of using UMI lower control arms with a 1/2" tall ball joint is the design of the UMI lower control arm. With stock ball joints the lip on the stock lower control arm rides in the void of the rotor above the the rotor surface for the brake pads. If you use 1/2" tall lower ball joints on a stock lower control arm you have to remove the lip or that lip will grind a nice groove into the face of the rotor and bind your steering. The UMI lower control arm will not touch the rotor no matter what ball joint you use