Old habit S10

Circle track pull slave. Or, make a push slave brackets like the gmt400 trucks got. It essentially mounted to the bellhousing bolts, triangulated to the clock somewhere, and allowed the slave to push the fork like mechanical linkage did

What duster said.

or hydraulic Throwout bearing.

Thanks! 
speedway has an affordable unit. 7/8" bore translates to 22.x mm where the s10 has a 21mm bore. Problem?

barefootcyborg5000 said:

Thanks! 
speedway has an affordable unit. 7/8" bore translates to 22.x mm where the s10 has a 21mm bore. Problem?

Those are slave bores?

If yes, then your new slave will require 10% more fluid volume to travel the same distance. I *think* it'll be fine, but I'm not a clutch system expert. If I'm thinking right, the worst case condition would be with new clutch and flywheel, and you might not get full disengagement with clutch pedal to floor.

if those are master bores, then you should be fine.

In reply to AngryCorvair (Forum Supporter) :

Slave bore, yes. At least, RA lists the stock replacement as 21mm. 
there's more math involved too, since the t5 is an arm the hinges on the far side of the bellhousing with the TO bearing in the middle of the throw, where this trans hinges on the near side with the TO on the other side of the fulcrum. I don't know the leverage ratios, but I can measure them and get an idea. Internet photos of both arms show either should be roughly 2:1 mechanical advantage. 

I think my approach would be to get the slave that is sized to work with that trans and TO combination, then get the master that pushes the right amount of fluid with your pedal.

What bellhousing trans and clutch application are you actually using? I'll see if I can pull up in my DayQuil muddled brain what hydraulic clutch combinations setups I can think of that'll work with it

In reply to Dusterbd13 :

It's a Saginaw 4 speed. I don't know the original application. We got it from a guy that had a mid 60s c20, but it wasn't original. 
Thinking back, I'm sure he gave us a hydraulic setup with it, but I don't know if it's still around. 

What bellhousing? And pictures of bellhousing?

I swear that looks like an early 60s c20 hydraulic clutch bellhousing 

In reply to Dusterbd13 :

Could be. But the LH header wants to occupy the same real estate, so I think I'll need that pull style slave and I'll just have to binky up a bracket for it. 

Another thought. Since I'm going to have to make a bracket anyway, why couldn't I simply add a pivot on the far side of the Saginaw setup and use the fork and hydraulics that are already in the truck? The 2.5 uses the same TO bearing as the older 350 clutch kits, and potentially I'm just drilling and tapping one hole to avoid even touching the clutch pedal or master. 

In reply to barefootcyborg5000 :

Depends on what the inside of the bellhousing looks like over there.

The bellhousing looks like it'll play along. I'll need to do a little more checking, including separating the old engine and trans to see exactly what I'm playing with, but I have pretty high hopes I can make it work. 
 

For tonight, I submit the truck in its (hopefully) most disassembled state:

so that is some small progress. 
 

I also learned that while I do possess a wilwood master cylinder, I do not have the space for it. They do offer a remote-resevoir unit that I'll keep in mind for plan b if I can't make the fork-swap plan happen. It's tight in there: