Hello,
Is it worth rebuilding starter and alternator or just buying new ones? And if rebuild,where to but from?
Thanks guys

buy new with lifetime warranty and never worry bout it again

Yes, rebuild your starter with heavier duty parts than stock from Nations Auto Electric for much cheaper than a "repainted" unit. The starter I rebuilt for my 1997 went 20K miles in the truck before I sold it due to the truck having been totaled and it will last the current owner *at least* 25 years.

As for the alternator, the same advice applies.