I'm not seeing it. How do you get the sleeve to bond to the broken piece?
The strongest way to repair a broken tube is to put a rod on the inside and drill holes in the tube. weld the tube to the rod through the holes.
If it was steel, I'd do it for you. welding aluminum tube takes a tig welder or a really talented gas welder. I guess the rod and tube method could be done by a aluminum mig welder.
If is was steel I would just go to my friends house and do it myself seeing that he picked up his welder from me a couple of
weeks ago. Every time it broke before I did put a tube on the inside and drill holes but put pins in stead of welding because
I dont think aluminum can be welded to steel at least I dont know how to do it. I used steel because I dont have nor know
where to get an aluminum rod. Anyway I did get a loaner so I am in no hurry to get it done but I do want it fixed, always
nice to have a back up chair.