froggy47

These are T1 (racing) front upper control arms that GM made to help the problem of rubber bushings that "walk" out of the control arm. A known issue. They have a higher durometer rubber in place of the original softer rubber. Durometer is the measure of stiffness or flexibility of the rubber.

I bought these new for spares and never installed them. They are left & right - not interchangeable.

You know if you need them & if yours are good, don't worry about it, you are not braking hard enough to move them.

However, if improved steering response, turn in, holding your alignment settings, are important, these will help even if your original ones look good.

$495 for the pair shipped to lower 48. Add 3% for PayPal.

GM part # Left 12480072
GM part # Right 12480073

The arm and bushing come as one complete unit not a separate bushing and a separate control arm.

The front upper control arms are the only ones that the official GM T1 kit included. They are (mainly) the ones you need to change for better performance, and are compatible with the front lower and the rear (upper/lower) control arms.

















For the guy(s) that are going to post about "Hey I found them cheaper at ........" you have found a dead link, call the number & you maybe will get a guy looking at his computer, saying "they are out of stock/back ordered/yadayada". If you do actually find them cheaper, buy them!

I had some a couple of years ago and already went thru all that.

Thanks guys for looking at my "for sale".

edge04

so is the only difference the rubber or the arms also designed differently?

froggy47

Just the rubber.

FruiTay

I wish I could justify this right now Froggy! Weddings aren't cheap.... Thanks for the rotor swap video! Watched it yesterday. It's good for us rookies and our confidence.

BUMP!

froggy47

Not cheap, but they really make a difference.

FruiTay

Hey Froggy, how much are these new? I tried looking them up and I couldn't find a price.

froggy47

They are no longer made so far as I know.



Read at the bottom of my first post, sometimes a guy will find them listed online, but it's not real. When you call to buy them, nada.

froggy47

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rkdc5z06

Im curious, whats the difference btw regular c5z control arms and T1 arms?

c5racr1

The bushings

froggy47

See post # one for as complete an explanation as you will get anywhere.

froggy47

bump