A Subframe Less Traveled

[deuce_454]

the vintage wheel works wheels will work with the ats spindles if you run a spacer to get the rear face of the wheel away from the brake calipers... that would mean ordering the front wheels with more backspacing, and the getting ATS spindles with longer studs....

to determine the required thickness of the spacer, buy the spindles (with long studs) and your rear wheels first! this will give you the opportunity to measure and test what thickness spacer is required to clear the brakes... and then order the spacers and front wheels accordingly...

this will not adversely affect ANY steering geometry! and is the cheapest and best way to get your car handling.... the lower price of the C5 based brakes almost pays for the ats spindles... and you can retain all of your front suspension as is... all you need then is to install a proper steering box and you are good to go

[tyoneal]

Originally Posted by deuce_454

the vintage wheel works wheels will work with the ats spindles if you run a spacer to get the rear face of the wheel away from the brake calipers... that would mean ordering the front wheels with more backspacing, and the getting ATS spindles with longer studs....

to determine the required thickness of the spacer, buy the spindles (with long studs) and your rear wheels first! this will give you the opportunity to measure and test what thickness spacer is required to clear the brakes... and then order the spacers and front wheels accordingly...

this will not adversely affect ANY steering geometry! and is the cheapest and best way to get your car handling.... the lower price of the C5 based brakes almost pays for the ats spindles... and you can retain all of your front suspension as is... all you need then is to install a proper steering box and you are good to go

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Thanks a lot for the information. That does sound like a decent way of solving the issue.

Regards,

Ty O'Neal

[Marcus SC&C]

We can help you with both the geometry and fittment issues. Either the AFX tall spindles or the stock spindles with the SC&C X-tall upper ball joints (which may be the ones you have?) and our bumpsteer correction tall tie rod ends will take care of the major suspension and steering geometry issues. A arms don`t alter bumpsteer no matter what anyone says. You can get some small improvement in bumpsteer by adding + caster but it`s not even close to half if you actually measure it with a bumpsteer gauge. The AFX spindles will will naturally provide a larger improvement in both suspension and steering geometry than we can get out of the stock spindles and offer much bigger wheel bearings etc. as well. Good comment above about brake caliper clearance. If you need an inch of clearance,add 1" of backspacing and a 1" bolt on adapter (the type with it`s own studs). For serious use it should be hub centric on both sides not universal fit. You can get them custom made for reasonable prices at wheeladapter.com Then you`ll have the wheels you want and lots of caliper clearance.
The Penske shocks and ATS brackets are a great choice.
IMO skip the R&P. Any percieved extra precision in the rack is lost in all the extra u joints in the steering shaft and any weight saved by the lighter rack is offset by the steel brackets etc. required to mount it. A Lee 670 box is 6.5lbs lighter than the stock 800 box and will give you more feel and precision than you`ll get out of most modern performance cars. Certainly better than our C5.
It`s nice to cover stuff on here because other folks can benefit from it but it`s also a little like talking with Post-it notes. Feel free to give us a call for more information. Mark SC&C