Welding on new sprockets

Does anyone have the procedure for welding on new sprocket rings on an Hd11? Is it possible without pulling the sprocket off?

one big part of the job is measuring everything close and knowing how much to cut off , make sure everything has a dimention to a known point as you can get sprocket in line with rest of machine when done - take a measurement so when you weld that section back in that you cut out of ring it is same across the distance between tooth as area not cut 

Yep - that is done by slicing about 5 teeth out of the ring - cutting the ring at low point of the tooth circle - a section taken out to be able to slip ring over the outboard bearing and truck frame support . 
 When I did my D6 - I put a D5 segmented sprocket (bolt on teeth) onto D6 spokes . 
On my HD5 - rather than remove the loader from truck frame and move the frame itself I cut the section from new sprocket ring and welded it back together then to HD5 spokes from hub .
 I seen a machine where a bolt on sprocket had a sprocket ring welded to the solid ring after old teeth were cut off - unsure of the reason if the center bolt pattern was damaged or if different track was used so different sprocket pitch was needed 

Great looking job! That is craftsmanship! Tracy

that is something many individuals do not think of when welding - WHERE IS THE GROUND - any current flowing through a bearing as a flirt with DISASTER .
 Same as any electric - was watching a guy weld on a truck bed - problem was the light switch was on - grounded through the lights and every bulb on the truck flashed ONCE and they were black inside bulb - dash lights included