Any one know how much i can crank the torsion bars. Anyone ever do this to their trucks, what size tires are you running. How big of a block do I need to install on the rear axle. Its a 94 318ci Standard 4WD perfect for four wheeling

 

I think the max on the stock torsion bars is 2", but there are torsions keys that can be purchased on ebay that will give you a couple more inches, and for the rear, the size of blocks would depend on the amount of lift you want, you could also use bigger leaf springs like out of a ram 1500 to give you a little and also stiffen it up in the back

 

found this for my truck..

http://www.suspensionconnection.com/...scon/642X.html