Several people with isolated steering column 73s and some 74s have approached regarding steering box kits. The column I am referring to has the rubber donut close to the coupler that joins the column to the box. Please see the attached photo of the new coupling. I have not added this to the site just yet, but its eligible for the current promo code lowering the kit cost to 755 + shipping. This is an easy installation and even uses your existing original hardware. PM, call or email if interested in ordering.