let me clear up my semi vague reply that 4x4high quoted so we are all on the same page here .
I didn't mean solid bolt together . pinch screw setup to take out the play of the D-shaft inside the D-tube . once you melt / remove the plastic pads there WILL be play .
drill 2 holes in the D-tube and weld near the tip that the D-shaft slides in . weld a nut on each hole . insert a set screw and lightly snug it to take out the play use long setscrew so you can jamb nut them also . then let the loc-tight setup and your good to go .
the point of the set screw will take out the play . but you don't have so much force on them to limit the shaft in the event of a accident .
do what you wish its your vehicle . . I am not trying to start a war on how to do this . but just stuff I have learned from installing them on my trucks and finding within a year of light use compared to most who drive them more than me . mine had play and was sloppy . I did this setscrew mod and perfect after .
4x4high is a very smart member here on this board and a valued member .