Would it be possible (and if so, how difficult?) to upgrade my front brake calipers and rotors to the 4WD version with 4 pistons? I had Mountain Brand rotors installed in November and they are failing already. The salesman says maybe because my rig is an RV and with all that weight... But the first pair of rotors lasted 22 years and 83,000 miles! The warrantee is still good and he can get me Brembo Brakes but won't guarantee they will last any longer. What to do???

 

They wont bolt directly on. You will need caliper adapter brackets, different rotors and probably bigger wheels.
http://toyotaminis.com/forum/threads...18q-swap.20761
http://toyotaminis.com/forum/threads...-brakes.16965/
http://toyotaminis.com/forum/threads...f-parts.13760/