Brake Pads shared w/ Celsior? Options

[Abraxis64]

hey all, haven't posted here much (or recently, for that matter), but i ran into an interesting situation that i figured somebody on here may know about...

anyway, the brakes were squeaking, so i ordered new brakes from a pretty reputable place (it's called pacific jobbers, and its where most of the shops around here get their stuff--a buddy of mine owns a service station) and was kind of suprised to see what i got. i just told them "oem replacement pads for a 99 celica" and they sent over a box of sumitomo japanese pads. and when i say japanese, i mean the thing had nary an english word on it. on the side, it said "toyota celsior", which is the jdm ls400

so, i looked at the checker website to find parts listings and, sure enough, the part# for celica pads are different from that of the ls4 pads. perhaps the japanese model uses different braking system than the american ls4? perhaps pac jobbers made a goof-up? i guess i won't really find out until after finals week when i try to install it, but maybe somebody else has a clue as to what's going on.

do we really share any parts (brake pads, specifically) with the celsior? thanks

peace