Super stock springs ?s

DartGTDan said

I have my car in the repair shop for a rear-end vibration issue. The owner of the shop has informed me that the vibration is due to the pinion angle being incorrect. The pinion is pointing up 4* which only gets worse under acceleration (as the axle rotates up). The shop owner also informed me my car has 2800 lb super stock springs in it from Mancini Racing (1 of the the previous owners added them). So apparently, when the ss springs were installed the pinion angle was not set or adjusted correctly.

So my inquiring mind went to Mancini Racing's website to look up 2800 lb ss springs. Mancini lists multiple springs, by vehicle weight. My question is do all Mopar vehicles use the same spring dimensions (front eyelet to perch to rear eyelet)? For example will the 2800 lb ss springs in my a-body car also fit other car bodies (b-body, e-body, or c-body)?

Click to expand...

SS springs all use the A-Body shorter front segment. Consequently, on B & E Bodies a longer front spring hanger must be used. They also come in staggered left and right spring rates, as the passenger side rear is pushed downward harder than the driver;s side during launch. Many cars sit a bit higher on the passenger side as a result. I believe there are also two different overall lengths, but I am not sure about that.

I run a pair of the 3200 lbs passenger side springs in both my 3700 lbs Mopars to get a softer more compliant ride on the open road. I also fitted both cars with properly adjusted slapper bars to control the wrap of the front spring segment of these lighter springs.

My automatic car has Koni's, and my higher powered stick car other has AFCO custom-valved double adjustable shocks. This set-up rides and hooks better than any other rear set-up I have tried over the last 4 decades.