well, if it spins 33's ok, i'll assume it has 3.73's.. it'll do ok, but it will be doggier to the point you might wanna, at some point, swap in some 3/4 tons that come with 4:10's most of the time..
and you will kill that trans unless you put a cooler on it, heck you should have one on it now... and don't expect to see OD often...
might wanna peek in the glovebox for an RPO that'll give you current gearing..