the stock transmission in my sc300 cant take much more abuse. i have clanking noises,slipping, and I'm pretty sure i have that solenoid issue because my car would rarely take 4th gear and i previously had the blanking o/d light.

SO...

I cam across i guy selling his auto trans from his 1gen gs3 but i have tried searching it but i cant find out if the GS trans and the SC trans or interchangeable without any mods.