How do you improve 'vague' steering?

I have a 68 gt fastback with power steering. I find it a little vague and the car tends to wander when you come hard out of corners. How do i make the steering more precise? Is it just a power steering rebuilt kit or is there more than that required to imporove steering. I am getting a front suspension rebuilt kit, which will help, but any suggestions welcome.

thanks,

brian
 
I had the same problem. All I did was to improve the front end by adding new arm balls, springs, KYB's, alignment, and then I turned in the screw on the top of the steering box. losen the nut that holds the threaded pin in place then turn it (the pin) in till it is tight- then back again 1/2 a turn. That did the trick for me. Now I have very quick response and the car does not wander. I did both so I am not sure which did more. I would say start with the screw on the top of the box...
 
I got tired of all the P/S problems (with leaks and sloppiness and the control valve, etc) and just swapped to manual steering. I did go one step further and bit the bullet and got a flaming river steering box. Never been happier with the steering. Yeah, there is a bit more resistance, but when the car is moving, the "feel" for the road is great. Not everyone's cup of tea but I do so enjoy the classic ride versus the isolated ride of a new car.
 
surprisingly no. Now it's not as easy as the power steering, don't get me wrong, but it is not hard to steer when parking. It is probably do to the new steering box, a superior unit compared to the old stock one. I have 235/50s on the front, so they are not skinny tires, but they are not monsters either. This is also in FL where everything is flat. Hills and slopes may make a difference.
 
I dumped the power steering, and did a suspension and steering rebuild which was a little over stock.

the manual steering converter was cheaper than replacing the powersteering components.

my 67's main problem was that the shocks were the originals. C7 stamping :D

i could compress them by hand and it would take about 3 minutes for them to fully expand.

the few times I was able to drive my car afterwards I noticed a huge difference. I was not scared to hit speeds in excess of 40 mph.
 
The power steering for the classic mustangs is notorious for being too sloppy. I agree that converting to manual steering is the way to go. The Mustang is so light, that manual is fine if the tires are moving, even a little.
 
The PS in my 67 is super light and easy to turn; lighter in fact than the steering in my wife's 03 Expedition. However, the 67's steering is vague, and requires constant input when going down the road (kind of like a boat). I have the M+ "make it new" steering rebuild kit waiting to go in (along with a full Grab-A-Trak suspension). Once I put it all together, I'll post the outcome.
 
on my brother's 71 we swapped from the stock rubber front end bushings to poly bushings, got a late model power steering pump, and put on an aftermarket 69 vette steering box (closer turn ratio and better internal sealing).

solved all his steering problems and the car turns very nicely now...he can actually pull a u-turn now haha :rlaugh: