GT vs GTPP front lower control arms

[JOKER M1]

Eventually I will be changing my GT lower control arms to the GTPP arms. I know they are constructed different but I wanna know if there are any angle differences. Basically, will changing them effect my alignment. Thanks.

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[Jigar@Steeda]

Essentially speaking the major differences are 1) being the bushings are a higher durometer and 2) the PP arms have the brake cooling deflector.

I would recommend considering our New competitive arms we offer in both the higher durometer bushings and bearings. Also, our lateral links offer an extended ball joint to help correct roll center for lowered vehicles.

https://www.steeda.com/2015-control-arms

 

[JOKER M1]

Thanks for a quick reply. The PP arms were given to me at no cost and I’m considering upgrading them using your bushings & bearings. Would you agree that’s my best option, also I’m only lowered 1/2” and it’s my understanding roll center wasn’t/isn’t effect enough to swap for your arms, am I correct in my assumption.

 

[Jigar@Steeda]

Thanks for a quick reply. The PP arms were given to me at no cost and I’m considering upgrading them using your bushings & bearings. Would you agree that’s my best option, also I’m only lowered 1/2” and it’s my understanding roll center wasn’t/isn’t effect enough to swap for your arms, am I correct in my assumption.

If they were given for free, indeed I would upgrade the bushings to bearings if you are competing with the car for optimal performance. The roll center is affected when a car is lowered 0.5" or more. So the extended ball joints on the lateral link along with a bumpsteer kit would definitely benefit your car!

 

[JOKER M1]

Got it, thanks.

 

[Myshelby3425]

Your alignment will change. I added the steeda lower control arms and the lateral links and the Toe alignment was affected alot. I have to adjust the Toe myself before taking it to get aligned since I rather not wear my tires. Just installed them last night and should be correcting the toe today. Can’t wait to feel the difference with these.

 

[JOKER M1]

Your alignment will change. I added the steeda lower control arms and the lateral links and the Toe alignment was affected alot. I have to adjust the Toe myself before taking it to get aligned since I rather not wear my tires. Just installed them last night and should be correcting the toe today. Can’t wait to feel the difference with these.

I agree, you are correct that the alignment/toe will change with STEEDA’s extended ball joint arm however I’m just concerned about changing from the GT arms to the GTPP arms.

 

[BmacIL]

The rearward of the two arms is also bearing joint on the inside vs a bushing.

 

[csmaan12]

Install them...if not for any other reason, do it for the fact that the non-PP ones are crap. I swapped mine today, tension arms from Steeda with the upgraded, higher durometer bushing (not spherical), and the regular PP lateral arms which I believe have spherical bearings where the bushing goes, so added benefit there.

Upon removing the lateral arms, the bushings were cracked and torn, and I'm only at 35k miles, and the ball joins that attach to the spindle were flopping around like wet noodles. Tension arms were okay, but the ball joint was also very loose on my old ones and was flopping around just by shaking the damn thing.

Plus it's a pretty easy install so not much to lose by doing it. Also I realized I didn't answer your original questions. Mine did not noticeably change my alignment. That being said I'll still be taking the car to get realigned next week.

 

[JOKER M1]

Thanks, I’ll be installing them in a couple weeks after I swap the bushing for the steeda bearings. So it doesn’t sound like there are any alignment concerns if I just swap the GT for the PP arms.

 

[Norm Peterson]

Alignment should be pretty close, but I don't think that "exactly the same as with the original arms" can be guaranteed any time a steering or suspension component is replaced. Interchangeability does not mean precisely identical. Plus, if any bushing deterioration had occurred prior to the most recent alignment, what that alignment gave would in fact be slightly 'off' for the "brand-new parts" condition.

Any changes in bushing material from base to PP *could* call for slightly different camber or toe settings, as the amounts of compliance that the alignment would need to compensate for will be slightly different. It'd at least be worth checking factory recommendations for both base and PP1 alignment specs.


Norm

 

[JOKER M1]

Thanks Norm, I’m due for an alignment since I just replaced shocks, struts and added BMR SP763’s & camber bolts. I wanted to get the alignment done next week and I hoped changing the arms wouldn’t effect anything. but I guess I can wait. I’m waiting on my BMR 4pt brace (out of stock, should ship soon) so I wanted to do the brace and arms the same time for obvious reasons.

 

[Jigar@Steeda]

Thanks Norm, I’m due for an alignment since I just replaced shocks, struts and added BMR SP763’s & camber bolts. I wanted to get the alignment done next week and I hoped changing the arms wouldn’t effect anything. but I guess I can wait. I’m waiting on my BMR 4pt brace (out of stock, should ship soon) so I wanted to do the brace and arms the same time for obvious reasons.

Like everyone has mentioned, it won't change it much but if you are going to get an alignment just wait til you get the arms on and do it all at once.

 

[JOKER M1]

Thanks STEEDA

 

[BlownGP]

Good info here. Did'nt know the PP arms were better.

Going to find some now.

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