Brake question on 72 4x4

[lts70]

Redoing the brakes on a 72 Cheyenne short box. Master cylinder is completely gone could not get any pressure at the bleed valves when trying to bleed the lines. The fluid that I did get through before all pressure was lost was full of rust grit and settlement. I went ahead and ordered new booster, master cylinder, and wheel cylinders from NAPA. Only problem is the master cylinder doesn't look anything like the one that's on the truck or I remember seeing on any 72 Chevy that I've come across before. What do you guys think?

Well I can't get my photos to upload from my phone. I will have to upload them when I get home to my computer.

The part number is P2062

Here is a link to the picture on NAPA website

http://m.napaonline.com/parts/PartsList.aspx?k=P2062

The one on the truck has equal size reservoirs front and back this one has a smaller compartment for the back fluid. It is quite a bit thinner as well.
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[Mister-B]

Originally Posted by lts70

Redoing the brakes on a 72 Cheyenne short box. Master cylinder is completely gone could not get any pressure at the bleed valves when trying to bleed the lines. The fluid that I did get through before all pressure was lost was full of rust grit and settlement. I went ahead and ordered new booster, master cylinder, and wheel cylinders from NAPA. Only problem is the master cylinder doesn't look anything like the one that's on the truck or I remember seeing on any 72 Chevy that I've come across before. What do you guys think?

Well I can't get my photos to upload from my phone. I will have to upload them when I get home to my computer.

The part number is P2062

Here is a link to the picture on NAPA website

http://m.napaonline.com/parts/PartsList.aspx?k=P2062

The one on the truck has equal size reservoirs front and back this one has a smaller compartment for the back fluid. It is quite a bit thinner as well.
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Why replace the booster if it is fine? You could just get a master cylinder, and bolt it up (make sure you get a MC that's designed for a booster and disc brakes, since you have a 72).

Not sure why the napa one looks different. Have you entered your vehicle specs at autozone or Oreillys to see what theirs looks like?
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[lts70]

http://m.napaonline.com/parts/PartsList.aspx?k=P1880

This one looks closer but still isn't exact. The one that is on the truck has two retaining bars to hold the cap on. This one only has the one.
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[Robert1970C20rstbukt]

Raybestos MC36280 is what you need, it has the dual-bail cap. The one with a single-bail wire is for 1970 and older trucks with drum/drum brakes.

http://www.carpartsdiscount.com/auto...186623&slide=6