i bought a master cylinder awhile back on ebay 1573m. i got i but didn't know i had 9 inch rears at the time. now that the master cylinder's gone bad on the duster i need to change it out. the only thing is the one i have is for 10's all around how much of a difference can this make for the 9 inch rears my front has 10s.

i was trying to hold out until i got all the parts for disks but i cant the brake pedal drops to the floor and i have a hard time stopping so i have to keep the drums on until i have all i need to do the change.

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Don't worry about it; 9" and 10" drum systems use the same-size master cylinder.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

they look the same but when i look at rockauto and my parts store. the info say's that one is for 9's rears and the other is for 10 in rears.

A-1 CARDONE Part # 101516M
w/Drum Brakes w/Manual Brakes w/9" Rear Brakes

"this is the one i have" A-1 CARDONE Part # 101573M
w/Drum Brakes w/Manual Brakes w/10" Rear Brakes

RAYBESTOS Part # MC36338 {Professional Grade Bore Size=15/16" Number of Ports=2 Primary Outlet Size=9/16x20 Secondary Outlet Size=1/2x20}
Front Drum Brakes..

i really have to change it out soon i cant stop last night i was on the floor with the pedal the back tires were skidding and smoken but i wasn't stopen

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It will fit and work fine. My biggest concern is that it's a Cardon reman... they don't have best reputation for quality.

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

Yup, if you have any possibility of getting a different brand (Bendix, Raybestos, EIS, Wagner, United), don't use that Cardone garbage. It'll only cost you money, time, effort and tears.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.