Thread: Model A Hyatt A-arm suspension

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Have any of you guys had any experience with Hyatt A arm front suspension? This was on a 29 Model A roadster I looked at and the owner was not available to talk with. I am considering running this set up but I want to do some homework first. Are there any pluses or minuses to using this type of suspension? I am going to run 15" front rims and I am not sure what brakes would be best with this set up? Would you suggest Wilwood or some other brand? I want to run dual pistons on both the calipers.

I have looked high and low on the web for a Hyatt A arm connection so if ANYONE has this information I would greatly appreciate your assistance.

I think what you are looking for is Heidt's... Not Hyatt...
http://www.heidts.com/
Heidt's is an excellant company and they have been around for a long time. You will be looking at their "Superide" front suspensions. These have been redesigned to work with the low fender heights of the early street rods.
The problem with the "base" Mustang II front suspension on an A is the inner fender line. In order to get the upper control arm "under" the low fender, the upper mounting points are pushed down. This screws up the front suspension geometry and hurts bump steer, roll center, caster gain and steering self centering. I will be going with a dropped straight axle on mine just to keep things simple.
I haven't had the opportunity to drive one with an independant frt suspension but I have talked to many guys with both styles and have come to the concensus the straight axle just works better under an A.
Mark

If it is a Heidt's system, it's Class A, assuming it was correctly installed.

I wouldn't worry about the applicability of a IFS in an A-Bone. If it's done right, it's as good as, or superior to, a straight axle. I installed a M-II IFS in my 30 sedan and it ran like it was on rails at over 120 mph.