What was the U-Joint number for people finding the thread on google doing the same swap?
Cant always be lucky enough to get a matching wheelbase donor truck to use the donor truck's driveshaft. And replacing a u-joint sure beats removing the yoke, and replacing the seal if it's not leaking.
When I removed the 9.5 14 from the 131" wheelbase, light duty 2500, there was no way to put the shaft into my 117" 1500. So I went with a Precision 447 u-joint.
Then last summer the axle came back out of the rot box 1500, and it's under my Yukon. I used a Moog 447. Different manufacturer, same part number.