Does anyone know what the difference is between different years of clutch masters?

I was looking them up and I found that it broke down to 4 different ones, a 79, a 80, 81-83 and 84-85.

What's up with the different ones? Different bore size, Pedal assembly, stroke length.

Any help would be appreciated

Thanks

 

The only thing I know for sure is that the thread size for the fluid hard line changed over the years, 79-80 is M10x1.25 and 81-85 is M10x1.0 not including the GSLSE, I put an 83 master and slave in my 79 with no problems.

 

right, i forgot about the different thread pitch.

well some more searching and i found some pictures.

and then i even found a difference between the SE and non SE

this is the 81-83



and here's the non SE 84-85



and the SE



i'm thinking it going to come down to matching the hard line to what ever you have. because all of them have the same 5/8" bore size.

cool, good to know

 

early vs late 79's have their connection pipe joint to the slave in different positions....

Stu Aull
80GS
Alaska

 

so overall it just sounds like some minor differences between the master and the slave. the overall function between them all is going to be the same as long as you have the bits from the right years to match.

thanks