I replaced my 1995 Chevy 4x4 manual trans' clutch pack, and then my clutch's hydraulic cylinders went out. This attached fell out of slave's inspection area when installing new cylinder. I suspect a previous mechanic carelessly left it in bellhousing and gravity eventually reposition it, or it came from the worn-out slave cylinder. It appears to have internal 5/16" threads. It may have been a mechanic's trick to adjust the old slave cylinder, but I couldn't see any threads on the cylinder's piston. My truck shifts fine. I don't have a clue to what it is or for???? A mystery



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Hi, new member here. I am bumping this up because I just bought a 1994 4x4 Chevy with a manual trans and just noticed that this is missing from mine! Any help on what this is? Thank you!

 

As I described earlier, this part fell out of the hydraulic slave inspection area, when I replaced slave. I am not sure that it is even a legitimate Chevy Truck part. A former mechanic may have carelessly left it in the clutch area, and it worked its way down. Or he jury-rigged it as a slave push rod spacer to give more clutch when peddle is depressed. Former owner stated at time of sale that he had recently replaced clutch. Hum.... My truck seems to work great. If you learn what it is, please let me know!!!!!!!! THX

 

It looks like a modified acorn nut. Notice it has a hole in the top, like a pivot nut, but it's too short for a clutch fork pivot ball nut.

 

the fork has some funky nut on it, and I made sure it went back on. thx