Switching to Hydro Clutch- Which Clutch Master Cylinder - The 1947 - Present Chevrolet & GMC Truck Message Board Network

K2Orion · 03-22-2011, 02:44 PM

The truck has a bit of an identity crisis. Its a 72 C10 that was originally a 350/350. At some point it recieved a 44/60 and a manual trans with the manual linkage. It had a 350/350 again when I acquired it. Now I'm in the process of swaping a 465/208 combo into my 72. I have a hydro bellhousing from an 85-90ish 465. I plan to use a slave cylinder from that same era. I was wondering what clutch master cylinder people were using. Yukon Jack used 1 from the 85-90ish with a shim, but mentioned the 88+ might work better because the mounting flange is perpendicular to the bore instead of angled down slightly.

I plan to reinforce the firewall and make my own adjustable pushrod.
So whats the hot setup for a hydro clutch?

Beuford · 03-22-2011, 06:52 PM

I used one from a `90 chevy 1/2 ton. I had to make a spacer to offset the rod to the left to clear the brake booster.

**special-K** · 03-23-2011, 06:26 AM

I've used '87. The early stuff was still metal.

03-22-2011, 02:44 PM	#1
K2Orion Registered User Join Date: Jan 2009 Location: St. Louis, MO Posts: 75	Switching to Hydro Clutch- Which Clutch Master Cylinder The truck has a bit of an identity crisis. Its a 72 C10 that was originally a 350/350. At some point it recieved a 44/60 and a manual trans with the manual linkage. It had a 350/350 again when I acquired it. Now I'm in the process of swaping a 465/208 combo into my 72. I have a hydro bellhousing from an 85-90ish 465. I plan to use a slave cylinder from that same era. I was wondering what clutch master cylinder people were using. Yukon Jack used 1 from the 85-90ish with a shim, but mentioned the 88+ might work better because the mounting flange is perpendicular to the bore instead of angled down slightly. I plan to reinforce the firewall and make my own adjustable pushrod. So whats the hot setup for a hydro clutch?

03-22-2011, 06:52 PM	#2
Beuford Registered User Join Date: Oct 2009 Location: Townville,Pa Posts: 284	Re: Switching to Hydro Clutch- Which Clutch Master Cylinder I used one from a `90 chevy 1/2 ton. I had to make a spacer to offset the rod to the left to clear the brake booster. Attached Images

03-23-2011, 06:26 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Switching to Hydro Clutch- Which Clutch Master Cylinder I've used '87. The early stuff was still metal. __________________ "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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