<VV> Dual or Single Master Cylinder

[Sethracer at aol.com]

In a message dated 11/30/2005 7:55:20 AM Pacific Standard Time,  
bowtieguy at cox.net writes:

I have a  single replacement master cylinder for the brake system on my '64. 
Is a dual  really necessary for safety or any other reasons?

Bob Vukas
_bowtieguy at cox.net_ (mailto:bowtieguy at cox.net) 





I am bringing this up again (does that make me a redundant  system?) the 
earlies have one additional reason to use a dual system. A rare  failure mode on 
an early, is the failure in the axle assembly  attachment that allows the axle 
assembly (wheel/axle/brake  drum),  to move out from it's mounting - as in out 
of the wheel well.  It has to do with the U-joint/ yoke attachment, and the 
axle bearing fit. It is  rare but it happens. If that happens on a single 
master cylinder set-up,  you lose not only your hydraulic braking at all four 
wheels, but your emergency  braking as well, since one drum has departed. Engine 
compression will not have  much effect either, since one side of the 
differential is in free wheel. if you  are going through the complete system and do not 
mind the non-stock appearance  of the dual master, think about adding this 
safety system. If the above scenario  did happen, you would still have front 
braking. -  Seth