1st Gen big rig wheels

[Mad Mack]

I have a 91.5 w350 5spd with custom flat bed. Picked up a set of 22.5 big rig wheels, anyone have any idea how much lift I need to run 11r tires? If so where can I order it? The truck has very stiff springs now and I don't want to soften my ride much because the flat bed is very heavy and gets alot of use. Any help would be much appreciated!

 

[RWherley]

The issue you will have is no lift spring ive ever heard of are stiff as your factory springs, they claim to be the same load rate but i dont buy it. as for fit do you know the overall height of your tires? I know they are a lot smaller but my 33.5" 245/70-19.5 fit with on with a stock springs.

 

[Mad Mack]

The issue you will have is no lift spring ive ever heard of are stiff as your factory springs, they claim to be the same load rate but i dont buy it. as for fit do you know the overall height of your tires? I know they are a lot smaller but my 33.5" 245/70-19.5 fit with on with a stock springs.View attachment 95970

The 11r tractor trailer tires are about 41.5 inches tall mounted. I'm guessing that I'm going to be making my own lift kit!