Wheel Cylinder for Rear End?

BigSky
BigSky Senior Contributor
in HUDSON
My 37 Hudson coupe has a Ford 7.5” rear differential in it & I need to replace the wheel cylinders & the bore is 3/4” with brake shoes at 9” x 1.75”.   I’m wondering if the original wheel cylinders were 1” bore & if I would need to bump up the size if factory was 1”, or I’d it not really a concern? Thanks 

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  • BigSky
    BigSky Senior Contributor
    I pulled one rubber cover off the wheel cylinder last night & it definitely looks like it needs replacement!  Off to parts store to see what I can find.


  • BigSky
    BigSky Senior Contributor
    No other wheel cylinder to use with the 9” backing plate.  

    You are correct, with a swap of backing plates to the 10” ones then one uses larger wheel cylinders & pads. 

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