Brake master cylinder trivia. smile From what I've learned, this makes sense. As the volume of the caliper increases, the diameter of the BMC piston increases to feed the larger volume calipers.

Front DSMTalk: "From what I've learned the brake master cylinder on the RS, GS, and GS-T have 15/16" bore (single piston calipers), GSX and base/non VR4 3kgt have 1" bore (two piston calipers), and the VR4 3kgt have an 1 1/16" (four piston calipers)."

Edward


'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD