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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Master Cylinder Question

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Old Jul 21, 2012 | 05:38 PM
  #1  
MARC96's Avatar
MARC96
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From: MILWAUKIE, OR.
Master Cylinder Question

I have a 91 f350 4x4, I've done a dually conversion using a non-rabs rear axle. i eliminated the rabs valve, and installed an adjustable proportioning valve to the rear brakes. Before the conversion the brakes worked fine. after the pedal is firm at first then goes down slowly like the master cylinder is bypassing internally. I've thoroughly bled the system. My question is are there differences between rabs and non-rabs master cylinders. You guys have always come through in the past with my other projects. i hope some can help. Thanks!

MARC
 
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Old Jul 21, 2012 | 11:56 PM
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Toplait
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From: Deepwater Mo.
Bleed the system again. Sometimes its just not enough.
 
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Old Jul 22, 2012 | 10:21 AM
  #3  
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MARC96
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From: MILWAUKIE, OR.
that's my next move, I was just wondering if the two master cylinders were different internally. thanks for the reply.
 
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