I'd run 39's. With those 4 inch springs and a 1 inch BL, you could run 35's with only a little rubbing.

But, as Bob said that much lift is not very stable. You can easily clear 35's with just the SOA. If you are set on going SOA then I would sell your lift springs for some new OEMs. Or just keep the springs, get a BL, and don't go SOA.

People who get 9+ inches of lift usually drive fullsize trucks with 44+ inch tires for mudding, and have big blocks, or at least V8's.

Oh yeah, you will need to upgrade your front axle shafts if you are going to run 37's on that D30.

Last edited by Brown81CJ5; 09/29/07 04:56 PM.
Gun it and run it!
1981 CJ5,258,T-176,D300,AMC 20,Dana 30,Trxus M/T 31x10.50, Rancho 5000's, GroundPounderFab front bumper, polyethylene gas tank, aluminum dash, AutoMeter gauges

What this country needs is unemployed politicians.