Need help with master cylinder

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downsr

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Anyone know part number for master cylinder for 70 duster with disc on front drums on back
manual brakes having hard time getting right one from parts store
 
I went with this one when I converted to front discs. So far so good.

Raybestos MC36406 - 15/16 bore unit.

Pat
 
For 1970 with k-H fixed calipers, 10.75 rear drums, Chrysler p/n 2808 600, casting will be 2225541
You may be able to still buy a replacement (old stock) from Kanter. Look ebay with the part number and then the casting number if that fails. IIRC the username there is oldcarparts.
For 1971-2, the m/c was 9461178, casting 3461187.
Work in progress cheat sheet here:
How come all my manual drum cars have disc master cylinders?
 
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I think Divenut has the right one. For some reason all the parts sources have incomplete listings for A-body brakes from 67-72. I think Chrysler superseded the part numbers at some point and didn't get the info out to the vendors. At any rate, it can be difficult to find correct listings for MCs, rear drums, hoses, and a lot of small parts. I have found that sometimes the 1972 Dodge listings are more reliable than earlier years. The problem is, sometimes this is a different part than a late 60s car, although usually it will swap in.
 
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