Looking at your sig. , yours is a 96 and I'm not sure if it's like mine or not, but I slid mine down just until the set screw was just past the splined portion. There was still plenty of clearance between the u-joint and the output shaft of the box-it could go down further, but if too close the output shaft and u-joint can bang against each other. You should move it out. PM me if you still have questions. As far as the slop goes, it's hard to say exactly what it could be. I know that the Borgeson shaft made a noticable improvement in my truck, but did not fix all of its problems. I may offend some Mopar people here, but I feel that Chrysler builds junk. The Cummins engine is the reason I bought my truck (I have worked in the equipment and trucking business all my adult life and as far as I am concerned, there are only two diesel engines and Izuzu or Trashnational ain't either one of 'em). I have had my truck for 2 years and was at my wit's end over steering problems a couple of month's ago and was almost to the point of getting rid of the truck. Then, pretty much by accident, I found TDR and a thread called "loose steering box fix". I immediatly ordered one of these devices as well as joined the club. While I was waiting on it, I ordered, recieved, and installed the Borgeson steering shaft (thanks again TDR). Last night, I installed Luke's Link and trackbar bushing (again the nod goes to TDR). Each on of these items made a noticeable difference individually, but together (along with Blistien shocks) have solved all of my problems. I am not saying that these will solve yours or anybody else's, but my truck now has 105k and for once, I actually look forward to and enjoy driving it. Now, on to the engine compartment... ... ... ... ... ... ... ... ... ... ... ... . Oo.