I got the master cylinder yesterday. Apparently chevy has at least 4 different quick connect fittings. The one from oreillys is for the 6 speed transmission and it seems to comet to the fittings correctly. Unfortunately the master cylinder is the type that twists in and locks and the bar is much longer than the Toyota one. I decided I was going to have to make an adapter. This is one of those things that I feel like I spent way more time on than I needed but couldn't really think of any other way to do it.
The chevy plunger has a ball on the end that fits inside a knuckle. The Toyota has more of a clevis style that is held in by a pin. Since the 4runner was a manual and it already had the clutch pedal I used the Toyota pedal and bracket. I removed the Toyota master cylinder and removed the clevis. It threads onto the master cylinder. I then cut the ball off of the chevy master cylinder. I believe the bolt size required for the Toyota clevis to screw on is 10mm x1.5. The rod was too big for the tap to screw on so I used the bench grinder to "turn down" the metal about a 1/16th all the way around.
That was just enough to cut threads onto the rod for the Toyota clevis to screw on. That works for connecting the chevy master cylinder to the Toyota pedal, but I still had to mount the master cylinder. I ended up taking some flat stock and cutting out the pattern for the master cylinder so it would twist and lock like it would factory. I then made a flange that would bolt to the firewall of the Toyota. I used 2" tube to connect the 2 and get the spacing I needed. I painted it and was waiting for the paint to dry to mount it. Hopefully this weekend I can have time to install, bleed it, and see if I finally have a clutch!
I also whipped up a simple tube bumper for my other 4runner that I am selling.
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