Rotors, calipers, and instruments????? (Page 1/1) Diamond Dave MAR 24, 11:28 PM Would like to know if rotors, calipers, speedo and tach can be used from my 97 STS? How hard or is it even possible to use these parts? These parts are relatively new. The rotors are 11.9 inches so should give me plenty of stopping power. I am planning on a Northstar transplant and have the whole car anyway. Anyone? Stubby79 MAR 25, 02:20 PM If you're talking about transplanting into a Fiero, post in the Fiero tech section...you'll get your answers a lot quicker. Or search the forum, cuz there are a number of northstar threads, including at least one who used/modified the northstar cradle to go into his fiero. Obviously that means he was using the brakes & hubs from the caddie.