Below is the response I received from the Mustng II specialist from Speedway Motors with regards to my question on compatability with my 131" wheelbase Roadmaster.


"The Mustang II spindle should still work pretty good even with a 131” wheel base. The Ackerman angle with the longer wheelbase will hardly be noticed unless you are planning on doing a lot of Autocross racing. It would only effect very tight turns like in a parking lot. In a perfect world the front tie rod when lined up with the ball joint centerline should intersect the center of the rear axle. In order to get the Ackerman correct the tie rod location on the steering arm would have to be moved inboard approximately ¼” but personally I think the stock location will be close enough.
Heidt’s does not carry the brake kit that uses 94-04 Mustang brakes. The only 13” brake kit Heidt’s sells for the Mustang II spindle uses a Heidt’s bracket and a Wilwood rotor and caliper. Be careful these kits may increase the track width. I hope this answers your questions.

Michael Limberg
Speedway Motors, Inc.
New Product Development
mklimberg@speedwaymotors.com
402-323-3210 ext. 2945 "

1) Does anyone know if there is hardware that could be used with the front tie rod that would shift the connection inward 1/4" and allow the suspension to be optimized?
Thanks