Your Budget &/or your mechanical abilities,
usually dictates allot of the necessary choices
add a few of the items below;
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Lower the center of gravity/car
Subfarme connectors
a roll bar to help stiffen & tie it all together
lighter/wider wheels & stickier lower profile tires
bigger better brakes
bigger torsion bars
bigger or adj. dynamic strut rods
poly bushing replacing OE rubber
or convert to coil overs
& tubular uca's & lca's
a tubular K-member
better shocks, will always help
if you stay with leafs add a rear rollers/sliders
O/S sway-bars front & rear will make a big difference
one of the best ways is to lighten the car, it will help too
use tubular suspension stuff will help, anything that's lighter stronger
& to gain a better adj. suspension & ride height, take weight out of the car
{fiberglass & aluminum, lighter than steel & cast iron}
better seats to keep you in control
better steering box, I went with a rack & pinion, night & day differences
etc. etc. etc.
there's far more than one way to skin a cat
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A few of the venders I've used
QA1 {formerly Capps Automotive performance suspension stuff}
is a decent vender too, it won't break the bank, good bang for the buck
I've used the stuff for years, they have stuff that is bolt on
&/or is compatible with OE torsion bars, steering & suspension etc.
Magnum Force Racing Ron Jenkins is a great guy, true Mopar owner & a fanatic too
Ridetech is a decent deal too
Riley Motorsports
Mancini Racing for some stuff
& Summit Racing also, I bought their 1-3/8" front & 1" rear adj. sway-bars
Mopar Performance, I have their torsion 1" bars {they have other sizes too},
good for a heavier car, not too good for drag racing really
Edelbrock, I have their gas shocks, for now
Hotckis is decent too
good luck & have fun,
be prepared to be sticker shocked on most of the stuff