Join Date: Mar 2006
Location: Monaca, Pa. 15061
I was under the ASSumption that only the front waggy springs had the offset pin. Rear springs are normal centered, but beings the OP has two sets of front springs it doesn't matter.
I believe they also give you two inches of stretch if run backwards. So if you have both front, and rear done, it will be four inches total. Stock wheelbase is about 94 inches, so that would put you at about 98 inches.
I am not sure about steering geometry either. You may be able to get away with a stock configuration. I'm not sure.
But be aware of the main leaf. It is notorious for bending quite easily.
I ran them on the front of my rig for about two runs, and both were horribly bent.
I would also recommend new u-bolts.
Wise men speak because they have something to say;
Fools because they have to say something.