SuperStock spring tips.
These are Moparts member 572's tips for SuperStock Springs. Pretty helpfull.
FRONT SHOCKS
I have used adjustable shocks, but the stock ones seem to work the best.
TORSION BARS
I have used different sizes. Have used MP Drag bars an even tried turning a set down on the lathe. Stock slant 6, stock 318 bars. The Drag bars worked ok, but they did not seem to last very long. Were always cranking them back up because they would lose there strength. The stock 318 bars have seemed to work the best.
Torsion bars have a front an back an left an right. Need to make sure they are installed correctly. (Popular Hot Rodding March 2002 pgs 66-70) all about T-bars.
SUPER STOCK SPRINGS
You have to have the correct weighted rated spring, for the weight of your car. My car weighs 3700 lbs. I use 3800lb rated springs. MP #312-P3690454 R #312-P3690455 L
Dont take out or ad leafs to the springs!
SPRING CLAMPS
Do not take off the factory clamps. I have added clamps to the first segment of leafs in front of the axel on BOTH sides. I Also have added clamps on the first segment of leafs after the axel on BOTH sides. An have added one clamp on the drivers side, in front of the factory clamp towards the rear of the spring. You will have to make sure that these will not get in the way with your tires. I have had to grind on the springs to get clearance. They will need to be checked often because they will move around.
REAR SHACKEL
Do not change the location hole of the shackle. I use the factory shackles.
PINION ANGLE
I have used the shims that are installed between the axel an springs they worked fine. I have now welded my rear end to 7*.
REAR SHOCKS
You have got to have a rear shock that extends further than the body travels! If you have a shock that is to short the car will unload the tires, leaf springs will open to quick an it will spin. I have used many different shocks. 2 sets of adjustable Comps., adjustable Ranchos, original factory shocks, an many truck shocks. I have even tested shocks on a shock dyno. I see no gains with any of the adjustable shocks NONE. The best shock that worked for me was ones made for heavy trucks. Before installing shocks compress both at the same time, a release them at the same time. The one that comes up the slowest is now the RIGHT rear shock.
RAKE
You need to have some rake in the car. I have around 2. I measure this on the frame directly behind the front wheel, an on the frame directly in the front of the rear tire.
TIRE PRESSURE
I have to stagger tire pressure. I stagger mine with a 1/2lb more in the right
rear. Some cars we have worked on require more than a 1/2lb of stagger. I have found that if the tire pressure is the same in both tires it will drive to the right every time.
These tips may not work for you. This is what I have done to mine, an I can 60 low
1.40s on the back tires off an idle.
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Shawn Jennings
9.25 @146 SS Springs
www.carpetperfect.com
