guys i recently switched from 1/2 to 3/4 ton suspension on my 89 burb, it had 10 bolts i swapped in d44, and corp 14. i retained the original front calipers and replaced rotors pads bearings etc up front and left rear as it was, (was in pretty good condition) now that i have it all installed and have driven it a bit. i notice that the left front rotor has wear but the right front doesnt look like it at all? it is grabbing but it doesnt have the wear on it like the left. still has the machine lines in it? any ideas? i didnt replace the master cylinder or anything ? should i for 3/4 upgrade? proportioning valve? HELP!!!