When ordering caltracs for an A body that has already been minitubbed with ss springs is there anything specific you should know on ordering them ??? size / length

I would measure the spring segments, center pin, to front bushing, and center pin to rear busihing...Also measure your front eye bushing, they made a few diff sizes, and you dont want the wrong solid eye bushing.

You should not have to measure anything except the size of bolt that you are using in the front of the leaf spring. Everything else they should know and they will have you covered. They have bushings for 1/2", 9/16" and 5/8" bolts.

They will also want to know if the springs were relocated using a Mopar Kit or someone else's kit. So that info will be helpful. Basically they will want to know how long the metal sleeve/bushing that the bolt goes through needs to be OR how wide your spring boxes are on the "inside".