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Leaf springs

Yes, Mopar Performance part numbers begin with P.
So if the part numbers stamped on your springs start with P then they are likely SS springs.
 
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Part number is stamped on the bottom leaf just behind the diff.
Use a 3800# spring; there is no 3900# spring.
P indicates a Mopar Performance part.
Check the part numbers on your springs to determine what springs you have.
Super stock springs have a shorter front section which requires a different from front spring hanger bracket.
O.K. The numbers are in. P3690455 (Left Spring) and Right side P3690454. When I called Mancini they recommended 3400 pound springs even though I told them the springs were for a 1969 Super Bee with a curb weight of between 38 and 3900 pounds. I do have the longer 5 1/4 inch front hangers. Mancini said the springs I have are for a station wagon and I will get a rough ride however in my opinion it is a performance car so don't expect the car to ride like a Cadillac or Imperial. I have no plans of pulling the current springs out and replacing them with 3400 pound springs, just hope the car will squat properly upon launch even though I have no intention of taking it to the strip.
 
Those are part numbers for 3800# springs.
454 is the right side.
455 is the left side.
 
Those are part numbers for 3800# springs.
454 is the right side.
455 is the left side.
Yes, and in my post I stated Marcini Performance recommended 3400 pound springs and that I have no intention of pulling the 3800 pound springs out of my Super Bee to replace them with the 3400 pound. Just hope the 3800 pound springs will work well on the car.
 
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