MOBS
The Mad Scientist
I know I'm late adding to this, but do you have any noticeable axle wrap? Blocks will increase it because it gives the axle more leverage against the weakened leafs. One thing we used to do with weak leafs if we didn't have the money or time to get them re-arc'd, was add an upside down load leaf to the bottom of the leaf pack. It would bring the leafs back to life and the carrying capacity was WAY higher. I have a feeling if you did it on your's, it would probably make you want to lift your front end. The last time we did that, we stole the load leafs out from under the 98-04 tacoma 4x4 mini trucks and put them on an 89 rcsb 4x4....it shot the backend up about 4". It's an idea if your leafs are bad, and you won't get any axle wrap from doing it.