Does anybody know if there are differences in the brake systems for the several generations of LS models. e.g. no of pistons, weight of the caliper, pad size, rotor size?

I am considering upgrading my brake system of my 98 GS300 and heard that the 4 pistons-caliper of the LS430 may fit. One of my friends can get an used LS400 ('96?) caliper, but I do not if this is the same as the new LS430.

Thanks.

 

This is a big can of worms.

LS has gone through the most brake revisions.