Yeah, when my truck was IFS I ran RANCHO torsion bars for about six months, they were a couple of MM. bigger, and better spring rate.
There is alot of performance to be gained from an improved spring rate. :drool:To control the additional unsprung weight of a larger tire/wheel combo, the stock bars should be upgraded. It is cheap and bigger bars can take "cranked in" lift and off roading no problem. My