I posted this in reply to another thread but decided it warranted its own thread.
For a 2500 RAM 4X4 with the 8800GVW rating the Rancho catalog lists p/n 9197 for the front and 9198 for the rear. Rancho has superseded the 9197 shock with the 9221 shock. Apparently there is another inch or two of travel on the 9221 shock versus the 9197. Supposed to prevent the shock from "topping out" under certain conditions. I was given this info by "Chris" at the Rancho tech line, 800-574-6257
For a 2500 RAM 4X4 with the 8800GVW rating the Rancho catalog lists p/n 9197 for the front and 9198 for the rear. Rancho has superseded the 9197 shock with the 9221 shock. Apparently there is another inch or two of travel on the 9221 shock versus the 9197. Supposed to prevent the shock from "topping out" under certain conditions. I was given this info by "Chris" at the Rancho tech line, 800-574-6257