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Old 04-25-2013, 03:57 PM   #1
83GMCK2500
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Join Date: Sep 2009
Location: Beaverton, OR from WA State
Posts: 1,515
Re: Rear disc conversion issue

I am going to convert my truck to 4Whl Disc when I swap rear axles. I plan to use a GMT-400 master cylinder of the correct size per GVWR (example: Typhoon MC listed above is only for 5,500 lbs) and if I need I will use an adjustable proportioning valve at the MC for the rear brakes. I will keep the stock proportioning valve in place. For example a MC from a '93 K3500 has a 1-1/4" bore F/R and is rated for somewhere in the neighborhood of 10,000 GVWR.
__________________
Devin

1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050
1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350

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