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Old 08-05-2016, 08:05 PM
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stobin stobin is offline
Chief Ponti-yacker
 
Join Date: Jun 2004
Location: Southern California
Posts: 542
Default Front Suspension and Brakes

So some changes were made up front on the suspension and brakes. I decided to upgrade to larger Wilwood brakes front and rear. I contacted Ron Sutton to use his services for a suspension and brake upgrade. Ron is a fantastic person to work with, and I highly recommend his services to anyone not wanting to make mistakes and waste money. He works with Speedtech Performance and he recommended their new Extreme ATS 2.0 spindle so that I could run a Corvette brake package, but this required a new set of Speedtech upper control arms. Speedtech said the uppers were needed to have correct geometry with their spindle. As for the brakes, I am converting the car to manual brakes. No more hydroboost. I did a ton of research on the idea and realized you need to be very careful not to mix and match parts. It's too easy to get it wrong and wind up with poor brake performance. That's why I went to Ron Sutton. He has his own formula's to work out every detail, and then shows you exactly what you need. Caliper piston volume, pedal ratio, master cylinder bore size....it all has to work together. The spindles came with matching billet steering arms. They are for 2nd generation F-Bodies. The '73-'77 cars share the same suspension.

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1973 Pontiac Grand Am ERL built 430 CI LS7, Brodix STS BR7 heads, Magnum T-56 6-speed, Modulare 19" wheels, QA1/Global West/Speedtech suspension, Wilwood 6/4 piston brakes. BMW Donnington Gray paint. All wrapped up in a Hurst Pontiac tribute theme.