Thanks for the response Master Gabster....I'm not disagreeing with....I just don't know....but when I looked at some of the related threads it seemed the 3/16 would work all around with a dual master.....the 3200 is still a 1/2 ton, so is there a difference in the brake componets for the front of a 3200 (where the 1/4 line goes) and the front of a 3100?