Master cylinder ID

[X22SS]

I wanted to see if anyone had any ideas about what range out cars this might work on and what would be a fair value. I know it would be a core since it's old and been sitting on my shelf for 20 years. I'm pretty sure I took this off a 1968 Impala Station wagon with disc brakes. The casting number is 29881, there is a symbol that looks like GL5 at the front. I'm assuming 225 cast in a square is the date. Thanks, Mark
197930

197931

197932

197933

197934

197935

197936

197937

[Kurt S]

I know little of full-size, but I suspect the MC is a replacement. The value is in the valves that you kept....

[dvss1]

MC is Cadillac and Buick applications . Sold by Raybestos.

[X22SS]

I know little of full-size, but I suspect the MC is a replacement. The value is in the valves that you kept....

I'm not keeping the valves, was going to sell it all together, I guess if no one wanted the MC, I would part it out. So what are the valves worth? Thanks for the help, Mark

[boltupal]

Keep the valves .