I was wondering if anybody knows if there is a difference in the brake booster for power drum brakes as opposed to power disc brakes??? I know the reservoirs are supposed to be different, just not sure about the booster. Thanks for your help.......
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John
1972 Pontiac Lemans (daughter's car) 2005 Pontiac Grand Am 2004 Ford Explorer Sport Trac
The booster is the same, just get the disc master cylinder and the correct rod and you are good to go. The 69 style disc master is has an oval shaped lid and uses the long rod. The 70-72 style master has the square cap and uses the short rod.
Will the drum rod be different than the disc one???? Length wise that is.......the car was equipped with power drum, so I figured the master was different.....had no idea about the rod. When I order the new master cyl. can I order a rod, or is this an OEM thing not reproduced????? Thanks again.........
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John
1972 Pontiac Lemans (daughter's car) 2005 Pontiac Grand Am 2004 Ford Explorer Sport Trac
Ok so I got a power disc master cyl. this week, and it did not come with, or list a rod for it. It turns out it is the same master cyl. as chev trucks. Any way I removed the old drum one, and looked at the 2, and it appears as though they both have the same measurements for depth, and rod location. I looked through my '72 service book, and couldn't find any reference to changing rods, only minor adjustment procedures. SO I am assuming they use the same rod??????? Will be a bit before I can test it to be certain......
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John
1972 Pontiac Lemans (daughter's car) 2005 Pontiac Grand Am 2004 Ford Explorer Sport Trac