I have a 70 Mach 1. I just put power steering on it last summer. Alignment is too far off to drive safely. It doesn't come back to being straight after turning a corner and it feels very unsteady on the road going straight. How can I get this alignment closer to get to town so a pro can work on it?

 

Sounds like your caster is way off. If you don't know how to geta close alignmentthen you may have to trailer it or tow it in. Make an appointment first

 

I use a string to get it close enough. Just to get me to the shop. Also I drive very slow and stay off the freeway.

 

Thanks

 

+1 on the string, that's what I did as well after changing the spindles.
The car doesn't drive properly because of a transmission issue, but as soon as it does I'll get it to the shop

basically make sure the steering wheel is straight, pull a string from the rear wheels to front wheels and adjust the tie rod until the whel is straight. then the other side. We did it with 3 people. One inside, one with string and me with tie rod. I have no idea how you want to do that on your own. maybe someone is inventive enough

 

If this is a power assist system, the cylinder only helps you turn the car and does not steer it so alignment is not warranted. If it's the recirculation type, it steers the car and again an alignment is not the issue.

What exactly did you change last year?

 

If you wnt to set your "toe" just use a tape. Yo can eyeball your "center" by sighting down the side of the tires to the back tires. Then just measure from center to center on the front and back of the front tires. Set about an 1/8" less on the front.

 

 

for this you need to adjust caster. But I have no idea how that's done on a mustang ...

actually that should help:
http://www.mustangmonthly.com/howto/...nt/caster.html

 

You can set a roughcasteradjusting the upper control arm. think of it as a caster wheel on a shopping cart, following your forward movement (pos caster) If the top of your wheel is too far forward,then the wheel won't follow, and you havea condition you're referringto: no return to center (neg. caster) . http://www.familycar.com/alignment.htmgives a quick overview. You add/adjust caster byshimmingthe uppper control arm. (because thelower control arm is usually not adjustable). Increase caster = more shim in front bolt, decrease caster is less shim in front bolt,generally speaking. You should always have it checked by a "qualified" tech at a shop. Be extremely careful when working around the upper or lower control arm, and a loaded spring. Use proper safety techniques. Clear as mud???