V1 Steering knuckles replacement?

[Stickerdick]

I am finding that even after my 4 wheel alignment, the steering can be bit touchy still .. I have looked over everything and from what I can tell , the steering knuckles on the shaft appear to be worn, is that a stock cobalt part or something from DF?

 

[Ross]

The steering wheel shaft, U joints, and steering rack are all from the Cobalt.

 

[Rttoys]

Ross is correct. All cobalt.

https://www.summitracing.com/parts/rnb-425-109?seid=srese1&gclid=EAIaIQobChMIzd6luprFkwMVoyrUAR1xqweOEAQYASABEgJ5QvD_BwE

 

[Rttoys]

And what specs did you set the alignment at?

oh. And what is your current tire pressure?

 

[Desert Sasqwatch]

Rock Auto has new steering shafts, go buy one and toss the old one. Easy Peasy!

 

[Stickerdick]

We followed the DF specs and 2006 cobalt specs as well, 25lbs pressure

 

[Gtstorey]

Drop the pressure down to around 20 psi or less. Castor to about 8 degrees. Camber to about -1. Toe to about 1/8” in. As a starting point.

 

[Desert Sasqwatch]

Cobalt specs are specific to a FWD platform using strut front suspension. Use the DF specs as your baseline to see how it feels. If it needs tweaking do one change at a time - camber or toe. Also, ensure you have an equivalent weight in your seat as you when making the adjustments - or in both seats if you plan to have a passenger when running on the track. This weight makes a significant difference when making ride height, camber and toe adjustments.

 

[Ross]

Drop the pressure down to around 20 psi or less. Castor to about 8 degrees. Castor to about -1. Toe to about 1/8” in. As a starting point.

Castor about 8 degrees, camber to about -1 degrees.... depending on the tire, I run -0.5 a degree.

 

[Stickerdick]

Rock Auto has new steering shafts, go buy one and toss the old one. Easy Peasy!

got the shaft on my account at O'Reilly's, matched summit price, solved my steering issues.

 

[Stickerdick]

for sure I'm going to need the brake adjuster, went on a test run, locked up the left front tire big time in a hard braking event diving into a turn, scary moment, but reminded me that I'm driving a vehicle without any "nanny" controls! FUNtime!!!

 

[Stickerdick]

Cobalt specs are specific to a FWD platform using strut front suspension. Use the DF specs as your baseline to see how it feels. If it needs tweaking do one change at a time - camber or toe. Also, ensure you have an equivalent weight in your seat as you when making the adjustments - or in both seats if you plan to have a passenger when running on the track. This weight makes a significant difference when making ride height, camber and toe adjustments.

the DF specs were our main setup, then we used the cobalt specs to just tweak a little to work with my driving style... which can tend to be aggressive.

 

[Robinjo]

We followed the DF specs and 2006 cobalt specs as well, 25lbs pressure

My rears are at 18 psi and fronts at 15 psi, just FYI. give it a try, if it isn't better you can run them back up

 

[Stickerdick]

It cannot hurt, I'll try it and report back

 

[Rttoys]

Yep. Street I’m about 16f/18r. Track 12f/15r.

and go with the specs others have said on the alignment. we have found camber doesn’t need to be near as aggressive as DF recommended.

 

[Stickerdick]

will do