CA WTB:hydraulic clutch/HydroBoost brake pedal assembly - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wbmoore · 07-10-2018, 10:06 PM

Hey... I’m looking for a hydraulic clutch/HydroBoost pedal assembly with the support rods and pushrods. I DON’T need the clutch master cylinder, slave cylinder, hose or the HydroBoost system. Just need the pedal assembly’ I’m told they are from 1985-91 1-tons. Thanks.

**1774btcrew** · 07-11-2018, 11:50 PM

eBay is going to be your best bet but they are expensive. The hydroboost seem to be a lot harder to come by than the vacuum boost.

GMC85HighSierra · 07-12-2018, 09:15 AM

I know you said you were looking for the pedals, but I'm not sure if these are vacuum or hydro boost. Once I know I can let you know if I have the pedal assembly (I'm used to the master cylinders). There are three of these total; just took a picture of one twice. Thanks

SunSoaked · 07-12-2018, 09:54 AM

Quote:

Originally Posted by GMC85HighSierra

I know you said you were looking for the pedals, but I'm not sure if these are vacuum or hydro boost. Once I know I can let you know if I have the pedal assembly (I'm used to the master cylinders). There are three of these total; just took a picture of one twice. Thanks

Those are all hydro. As long as they have a manual trans and are 85-87 they will work.

wbmoore · 07-12-2018, 10:24 AM

Yep, HydroBoost for sure. Hard to tell from the angle of your photos but I don’t see any hint of a master cylinder for the clutch. Is one of these trucks a MANUAL transmission ?
Thanks.

GMC85HighSierra · 07-12-2018, 07:54 PM

This one pictured was a manual truck. It has the removable stick shift floor hump with the boot still on it. All that's left of this truck is part of the cab; the dash/cowl area. The other two trucks have automatic pedals in it. Thanks

SunSoaked · 07-12-2018, 08:41 PM

Quote:

Originally Posted by GMC85HighSierra

This one pictured was a manual truck. It has the removable stick shift floor hump with the boot still on it. All that's left of this truck is part of the cab; the dash/cowl area. The other two trucks have automatic pedals in it. Thanks

Thats not an 85-87. I can see the mechanical linkage.

GMC85HighSierra · 07-12-2018, 08:44 PM

I believe the cab was a 77 or 78; it still had the VIN tag on the inside of the door. Thanks

07-10-2018, 10:06 PM	#1
wbmoore Registered User Join Date: Jul 2001 Location: Big Bar, California Posts: 136	WTB:hydraulic clutch/HydroBoost brake pedal assembly Hey... I’m looking for a hydraulic clutch/HydroBoost pedal assembly with the support rods and pushrods. I DON’T need the clutch master cylinder, slave cylinder, hose or the HydroBoost system. Just need the pedal assembly’ I’m told they are from 1985-91 1-tons. Thanks. __________________ 1967 GMC 3500 lwb dump flatbed project 1969 GMC 2500 1979 GMC 7000 fire crew truck w/water pumps 1982 C/30 Cummins NV5600 Crew Cab project

07-11-2018, 11:50 PM	#2
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,543	Re: WTB:hydraulic clutch/HydroBoost brake pedal assembly eBay is going to be your best bet but they are expensive. The hydroboost seem to be a lot harder to come by than the vacuum boost. __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

07-12-2018, 09:15 AM	#3
GMC85HighSierra Registered User Join Date: Sep 2016 Location: Morrice, MI Posts: 155	Re: WTB:hydraulic clutch/HydroBoost brake pedal assembly I know you said you were looking for the pedals, but I'm not sure if these are vacuum or hydro boost. Once I know I can let you know if I have the pedal assembly (I'm used to the master cylinders). There are three of these total; just took a picture of one twice. Thanks Attached Images

07-12-2018, 10:24 AM	#5
wbmoore Registered User Join Date: Jul 2001 Location: Big Bar, California Posts: 136	Re: WTB:hydraulic clutch/HydroBoost brake pedal assembly Yep, HydroBoost for sure. Hard to tell from the angle of your photos but I don’t see any hint of a master cylinder for the clutch. Is one of these trucks a MANUAL transmission ? Thanks. __________________ 1967 GMC 3500 lwb dump flatbed project 1969 GMC 2500 1979 GMC 7000 fire crew truck w/water pumps 1982 C/30 Cummins NV5600 Crew Cab project

07-12-2018, 07:54 PM	#6
GMC85HighSierra Registered User Join Date: Sep 2016 Location: Morrice, MI Posts: 155	Re: WTB:hydraulic clutch/HydroBoost brake pedal assembly This one pictured was a manual truck. It has the removable stick shift floor hump with the boot still on it. All that's left of this truck is part of the cab; the dash/cowl area. The other two trucks have automatic pedals in it. Thanks Attached Images

07-12-2018, 08:44 PM	#8
GMC85HighSierra Registered User Join Date: Sep 2016 Location: Morrice, MI Posts: 155	Re: WTB:hydraulic clutch/HydroBoost brake pedal assembly I believe the cab was a 77 or 78; it still had the VIN tag on the inside of the door. Thanks



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