Tom03Z06

I may need to replace my driver side lower A-arm/control arm,

What are the differences between the T-1 and stock? bushings?

its for an 03 Z

wallyman424

yup. slightly stiffer bushings. unless you're in T1 where youre limited to T1 arms, just get some poly bushings and put them in regular A arms.

Tom03Z06

Thanks,

I may have some physical damage to the arm itself not related to bushings. T1 arms are cheaper than New Stock, and cost close to low mileage used. So I was just wondering

Last C5

Really!!!! That's something to look into. Thanks for the info.

meldog21

I have an extra set of four lower control arms with poly bushings installed. $400 plus shipping if you want them.

meldog21@yahoo.com

Dog

Last C5

Are you getting these from Gene or ??? and do you have stock numbers for them. I can't seem to get to any T1 parts in the regular catalogs.

1ED1

name brand of bushing
thanks ed

Tom03Z06

To make a long story short, The nut that secures the ball joint to the knuckle came off after 2 months of working on the front suspension. totaly my fault

The lower controll arm rubbed into the front wheel damaging the wheel and control arm.

Luckly it happened at 35MPH

Tom03Z06

12480072 Arm - Front Upper LH
12480073 Arm - Front Upper RH
12480077 Arm - Front Lower LH
12480078 Arm - Front Lower RH

Last C5

Thanks!

NoEsFacil

Does anybody have GM Performance part numbers for rear arms?

thanks,

j

froggy47

I have all the control arms except front uppers with oem bushings and good ball joints (low mileage take offs). PM me if anyone is interested.

JJwins

Sorry for bumping and old-ish thread but my question is the same as the title. So the only difference between the T1 and OE arms are the bushings? No changes in geometry at all? Im looking into the T1 suspension package (supposedly still available through a few vendors) which includes them and wondering if its pointless.

Also can anyone confirm if im reading the current T2 rules correctly that delrin is allowed as replacement for all bushing (including A arms), which essentially eliminates (if the T1 and OE arms are geometricaly the same) the need for the T1 apecific A arms?

Thanks,
Jonathan

Bill Dearborn

Bushings are the only difference. The T1 bushings are stiffer with less flex.

Bill

3X2

Delrin is SCCA legal in T1 & T2. Arms are the same sans bushings.

davidfarmer

I'd go with poly or Delrin instead of the T1, only advantage of t1 is not having to press the old bushings out yourself