Rebuild kit? For rebuilding what exactly?
I bought my L-N-Lube a couple of years ago and it was just the single item...:smiley_aafz: Probably started with rebuild kit on the next one sent out, with my luck!:laughing:
BTW, I don't think it's expensive- it's a tool that saves a LOT of aggravation when greasing a tractor or anything else, and to me that's well worth a $20 bill.
When I had my shop all I bought was Snap-On tools; now those are expensive, but again worth the money when working as a professional, one needs things to work without any question, and little as possible downtime. JMHO.