Jerry Haas has built Pro Stocks and Pro Stock Trucks for the biggest names in the class. He has won the Car Craft All-Star Chassis Builder award a record 13 times. Jerry is an experienced racing also, having won the 1981 and 1984 AHRA Pro Stock World Championships. He has competed in NHRA Pro Stock and Pro Stock Truck as a driver and car owner. Address questions to chassis@racingnetsource.com.

I am in the planning stages of building a new doorcar for bracket and super class racing with hopes of one day moving up to Top Sportsman. Right now I have my eyes on going with a big small block and EFI on alcohol. My question is with rear suspension. I was wondering you thoughts on using the new swing arm suspension on lower horsepower applications or would be sticking with a 4-link be the best route. I think the swing arm may be more consistent than 4-link with its fewer moving parts. Other than lack of adjustability, do you see any downside to the swing arm in this type of application.

Thank you,
Stephen Surles

I think you would be much better off with 4-link suspension because you can make better 4-link position lengths. The 4-link suspension can be made to give you, by adjustment better reaction times.

Jerry

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