Question about 1990 blazer brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Scrub · 01-25-2010, 01:09 PM

I have a 90 k5 blazer that I am putting dana 60 and corp14 axles under. I have a doner truck that has hydro-boost brake that I an grafting into the K5.
My question is this. What to do with the wires that come out of the factory proportioning valve? I assume there are two switches and that if if short the 2 pairs of wires to each other that everything will work. Or, can I just unplug the connector and be fine?

Thanks in advance
TW Scannell

**special-K** · 01-25-2010, 09:55 PM

I moved this from the parts board.I think someone has experience with hydroboost here.

01-25-2010, 01:09 PM	#1
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	Question about 1990 blazer brakes I have a 90 k5 blazer that I am putting dana 60 and corp14 axles under. I have a doner truck that has hydro-boost brake that I an grafting into the K5. My question is this. What to do with the wires that come out of the factory proportioning valve? I assume there are two switches and that if if short the 2 pairs of wires to each other that everything will work. Or, can I just unplug the connector and be fine? Thanks in advance TW Scannell __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

01-25-2010, 09:55 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: Question about 1990 blazer brakes I moved this from the parts board.I think someone has experience with hydroboost here. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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