HT4 crawler loader tooth and shank

Hi everyone,
I was wondering if anyone has a good source either aftermarket or cat part numbers for a tooth and shank for my crawler loader. i was working it on a job this past weekend and found i broke off one shank and lost the other half and tooth, also i cracked another shank and is getting ready to break in 2. so i figured i would ask the people who know these machines. Has anyone who owns these machines upgraded the teeth on these machines at all? if i cant source the original part im gonna look into upgrading the teeth and shanks. thanks again everyone. also if anyone has any laying around and would be willing to sell it that would also be an option for me as well.