Front suspension problems

Have you inspected all front end parts? Tie Rod Ends, Center Link Ball Joints, Idler Arm what about the backlash in the Steering Box?

tires are the first thing i would look at no matter what type of suspension your getting. then check as stated all of the suspension components. if any have play, replace em. then check the steering box for excessive play.

My guess, is it's going to be due to the alignment. If you took it to a shop and had them do a stock alignment, the car will feel very twitchy and want to wonder a lot at highway speeds. If this sounds like what you are experiencing, go back and have the alignment set to the performance specifications:

The original stock alignment setting for '64 - '66 Mustangs are:
Caster: -0.5*
Camber: -0.5*
Toe-In: 9/32"

The Performance alignment settings for the "Shelby" drop are:
Caster: +1.5° to +2.5°
Camber: 0 to -.5°
Toe: 1/8"

The biggest difference being in the Caster setting. A positive Caster setting will help the car to track straighter and return to center more quickly after a corner. The easiest way to describe it would be to think of a bicycle and angle of the front wheel fork. If the fork that connects the handle bars to the front wheel were to be straight up and down (0 degrees Caster) you would constantly need to steer to keep the bike going in a straight line. Now if the front fork were installed at an angle (think chopper - Positive Caster), you could take your hands off of the handle bars and the bike would continue to track in a straight line.

ballajb64 said:

Right now this is what my alignment is set at in total for the front:

Camber: .7
Caster: .9
Toe: .49

Click to expand...

I would ask them to give you 2* positive caster and see if it makes a difference.

Is .49 toe in inches? half an inch is wrong....an eight or so would be fine (.125).

Half-inch toe? Yikes! That would be massively too much with OE bias tires, and radials need even less! 1/8" or even a tad less is ideal.