Okay guys I was able to score V Codes..2C3Z-5310-HA , stamped #3C34ADA , Suffix AFD, Weight 2,200lb today! Price was free so I am doing great getting parts so far. What else do I need to install these springs in my F250 straight axle. Coversion already done but truck is too high so I am bringing it down for pratical purposes. Please suggest vendors also....

 

You have to move the spring hangers.

i'm not 100% sure which one or if both.

neal knows. he's doing it.

 

You need an RSK to install the SD springs.

 

The rear spring hangars need to be moved back.
I don't think you necessarily "have" to do the RSK but it is usually done while you have it apart that far.
You may not want to do the RSK as it adds lift to the truck.

Why does yours sit so high? Does it have a lift?

 

I've only ever heard of SD springs being installed with an RSK... didn't know someone had done it by moving the rear spring hanger back. Any issues with getting the axle centered?
The RSK is supposed to just level the truck, if you go with the 3" kit.