Universal aluminum brake master cylinder

What is the stock bore size?

Any amount larger or smaller will change the pedal feel and travel

If you have power brakes you probably will not noticed the difference.

If manual you will have to apply a little more leg pressure if the stock is 1" and less travel.

1-1/32 is like 4% more pressure.

If you go smaller like 7/8" or whatever the size is you will have less leg pressure but more travel.

BTW force10brakes makes a Chrysler aluminum master

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1962-74 Mopar Bendix Style ALUMINUM Master Cylinder