67 Mustang front spring replacment gone wrong.... advice please?

Many years ago (20 ) the complete front and rear suspension was replaced with a NDP peformance kit. It included, as it does today,620 frt springs,urethane bushings,big stablizer bar,rear springs and stabilizer bar, rear lowering blocks and ky shocks.The 620 springs where said to lower the front an inch or so. However the opposite appeared, front raised about an inch or more, looks more like a old mild gasser.The car was only test driven at the time and put into storage till last year I put it back on the street.The suspension works and handles great, though the front is reasonably stiff.My question is did I get the wrong frt springs, 390V8 instead of small block,how do I tell,and what kind of spring replacement should I get,to get the lower hieght.  

somebody will know of spring rates.. but do you have a dial caliper or a micrometer??? to get a wire diameter measurement of the front spring material..  

It sounds to me like you tightend up the control arm pivot bolts with the suspension hanging (sitting on jack stands). Any rubber suspension bushings need to be tightened at ride height, otherwise you're putting pre-load into them which can raise the front end as you are seeing. This goes for sway bar bushings as well. I would loosen all bushing bolts (control arms, strut rods, sway bar, etc.) and push the front end up and down to cycle the suspension and see if it settles. Then re-tighten everything with the vehicle weight on the suspension.

HTH...
Mark  
Mark Houlahan
Technical Editor for:
-Modified Mustangs & Fords Magazine
-Mustang Monthly Magazine

1965 FFR Roadster 427W/TKO-600 5-speed
1966 Mustang 289-4V/C4 Auto
1968 Mustang 4.6L Three-Valve/5R55S Auto
1990 Mustang 306/AOD
2002 Explorer Sport Trac 4.0L V-6/5R55 Auto

Your right,every thing was done on a hoist, wheels suspended.Camber is way off which is noticeble looking at the front of the car, top of wheel is outward.After the hoidays I'll do as you suggest and see what happens and report back.Your the man Mark.
Thanks Gezzer  

Yes, I'll measure and report back.
Thanks Gezzer  

there are several articles in the archives on front suspension..

here is one on alignment..


http://www.mustangmonthly.com/techarticles/mump_0911_the_importance_of_front_end_alignments/viewall.html  

Thanks a lot this will be helpfull.
Gezzer  

i don't want to leave you half sprung..

http://www.eatonsprings.com/64-73mustangfront.html


you might want to check some of the links on this page...

http://www.eatonsprings.com/techinfo.htm  

boing..  boing.. boing...  

thanks I'll spring right to it
Gezzer  

Oh boy... :-D  
Mark Houlahan
Technical Editor for:
-Modified Mustangs & Fords Magazine
-Mustang Monthly Magazine

1965 FFR Roadster 427W/TKO-600 5-speed
1966 Mustang 289-4V/C4 Auto
1968 Mustang 4.6L Three-Valve/5R55S Auto
1990 Mustang 306/AOD
2002 Explorer Sport Trac 4.0L V-6/5R55 Auto