I need a hydraulic clutch

always thought this clutch master looked like it would work

first year chevy s10 truck

For Chevy S10 Blazer & GMC S15 Jimmy Sachs Clutch Master Cylinder CSW | eBay
may as well get the fluid bottle as well.....

all of the aftermarmarket ones are straight mount with a milled adapter. this one already has the 45* mounting for the curved bulkhead position . and without having to fit a milled adapter pushing the whole lot an inch or so forward, in theory the end of the cylinder won't be pressing against the shock tower when installed...

you'd need to cut off the rod half way up, thread it and use a balljoint of some kind to attach to the peddle under the dash .

at the trans end

pusher piston from a 3 series BMW
Clutch Slave Cylinder Fits BMW 3 Series E21 E30 5 E12 E28 6 E24 Z1 E3 Febi 01000 | eBay?

again you need to thread it and fit your current washer and insulator, or a truck steel ball so it can push your original clutch arm

mounting bracket on the original stud mounting for the z bar can be made from hardware store angle iron.

if you don't like that the chevy S10 t5 slave might work
(i personally want the bit most likely to fo wrong on the outside not in the bellhousing )

Depends on its bore.... i know that a big block or dodge dakota manual clutch release bearing fits a T5....the S10 used a T5 so it makes some sense to believe that the concentric slave fits a T5 and therefore would fit a dakota or a big block trans... its a risk... junk yard part to test, i'd guess would be the best bet before investing, or take an Input bearing retainer to a chevy dealer and ask to see if it fits.. sometimes you find the tech who is intrigued by your plan.... rather than the one who says year and plate and won't sell you anything if the computer says no...

https://www.amazon.co.uk/Cylinder-Chevrolet-Suburban-Silverado-1996-2003/dp/B07WCCPNQH?tag=fabo03-20

even so its only £50.... better than $800

you'd just use a stud instead of a bolt for one of your IBR bolts to act as an anti rotation stopper, may need some chunk of ally as a stand...do you know someone with a lathe?

my thinking is brand X OEM parts means spares access, easy.... off rockauto, and tested to destruction by millions of customers over trillions of miles .
Aftermarket, NOT OEM parts, means spares until the supplier goes bust...at elevated prices, and tested by the owner of the company and a few of us.... 100s or 1000s, Not Millions.... on weekend cruisers and race cars that don't do trillions of miles

i'm a cheapskate at heart, or as the Australians would say, a TAVO..... Tight *** valiant owner.

Dave