This is a
Wilwood Aluminum Tandem Chamber Master Cylinder with the Combination Proportioning Valve and
Wilwood ten pound residual pressure valve. You can access the specs by clicking the links.
I went with this MC on Dave’s (
http://bandit4x4.com/) recommendation. He has one in his truck and said he’d help install it (basically install it while I handed him tools).
It is a direct swap; take out the OEM MC, the pin part of the output rod length adjuster and ABS module. Bench bleed the Wilwood MC, bolt it to the brake booster with the OEM hardware, connect the fluid lines, connect the pressure valve, bleed the system.
This MC kit ain’t cheap but you get what you pay for, again, check the specs
HERE. Considering that lack of specific info on others SAS brake setups on 1st Gen SAS’d trucks I could find, that I knew it would fit, that Dave was going to install it and that I would learn how to do something it was kinda a no brainer.
OEM out,
residual pressure valve installed.
MC installed;
Bleeding a brake system is always a PITA even with
speed bleeders but after a few times around we got it done.
The brakes felt spongy with the OEM MC even after the ABS delete but would stop the truck. I took it to the
NEXTerra B2SR17 and they held fine on the trail. They just didn’t instill any kind of confidence.
With the Wilwood installed I was able to stop the truck in about 30 feet from 30mph leaving a skid mark. On the drive back to Brooklyn the brakes felt stronger than the OEM system pre SAS.
I’m happy, money and time well spent.
Thanks Dave!