Hydro clutch setup advise needed

[8mag]

after 2 back surgeries really need to go to a hydraulic clutch behind my bigblock. surely someone has done this allready for a 72 4x4. probably go back to a nv4500 at the same time now that gas is so cheap. any help out there...........

[Tx Firefighter]

8mag, I don't really have anything to offor on your clutch problem, except to say, 88 and up trucks used hydraulic. FWIW.

What I wanted to know was, will you please post some pictures of your 1 ton 4x4 dually?

I'd sure appreciate it.

[Yukon Jack]

I'm using a hydroboost master brake setup and hydraulic clutch out of a 1989 1 ton in my 69 4x4. Here are some pics. I used the engine from the same vehicle so I didn't have to find a way to attach the slave cylidner to the bellhousing. Someone either here or over at www.coloradok5.com has attached one to a normal bellhousing.

Since the brake setup is pretty heavy it was suggested that I reinforce the firewall. Buddy made me the aluminum plate that you see in the pics.

The hydraulic clutch master is angled incorrectly so I had another friend make me the shim you see. This shim gets the master pointed correctly. Then I cut off the existing end on the master's rod, threaded it and added a clevis rod end to it. Took a bit of work to get the throw correct on the pedal so I had sufficient movement but no binding.

Truck is ever so close to being ready to fire up, but hasn't been driven yet so I can't report on the improvement.





This pic shows the brake rod end but the one on the clutch rod is the same type.



Happy to help with any specific questions.

[gonebad2]

McCloud makes a setup with a hydraulic throwout bearing. Summit carries it. One of my Buddies used it in his 55' Belaire and it's slick. Way easier than trying to piece a system together. He is running an LS-1 and a Muncie. Check it out. You won't be dissapointed.

[1969 GMC]

The hydraulic clutch started in '85. I would just look for a parts truck.

I have heard of people with 4x4s having trouble with the internal setup.

[Huck]

I have a running hydraulic clutch on my 72 2x4 1/2ton. I is out of a 96 1/2 ton. Includes hyd throwout bearing. Trans does not accept a mechanical drive speedo setup. I was expecting a soft/easy clutch pedal---didn't get it. My 72Blazer 4x4 has a softer/easier clutch. I set up the clutch master cylinder on the inner side of the brake booster verses the outer. No Z bar to deal with. No sure I wouldn't trade for a 700R4.