Re: First hand experience with changing to the NBS master cylinder WOW!
You may be referring to the design change on the NBS brake circuits being flipped F/R?
With our trucks using the step bore master the front circuit had to use the forward portion of the cylinder to drill the stepped bore ( can't put a bigger bore bit thru a smaller bore hole)
Since the nbs uses the same bore size for both circuits, the engineers chose to reverse the layout, but they should operate identically.
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