*My new 62 short/fleet turd*Plus questions

[**grumpy**]

Well, I sold the 66 short/fleet because it was in pcs. and I need a driver, with selling the house, moving, job hunting etc...

I had to give up all my air-ride stuff with it, but....

So I bought this 62.

It has a mid-80's center bolt head 350/auto.
A/C that works, that I'm removing

And a, what appears to be, Gm 10-bolt from a coil spring car with upper control arms. They cut those off, and welded the craddles for the truck trailing arms.
It's about 2" or so too narrow on each side, but I can put more rubber under it, with a positive offset wheel.

Awesome mirrors, that we already threw away..haha
Awesome diamondplate bedrail bars, that we already threw away...haha
Awesome 70's hubcaps...gone

We drove 177 miles to get it, said a wish and a prayer, and drove it home 177 miles, and made it!

I'm gonna mess with some stuff, get it alittle more comfy for me. Seat is a mid-late 70's bench. It fits across great, but is too tall. I like to be down in the truck. So the seat mounts are coming off, and I'll make some right on the floor.

A/C unit is coming out. Too big for my taste. But I'll keep the engine driven pump for future airride...

Now, for the question I need answered...What is this master cylinder? It leaks and I need to replace it. Any ideas???

Thanks