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Old 08-14-2008, 12:43 PM
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68 firebird power drum brakes pushrod

my project bird has new drums,and shoes, all adjusted up and brakes bled.
pedal is firm but i have about 4 inches of pedal play before they engage.

i am wondering if a previous owner added the power booster and the pushrod is too short.
i need to know:
1. if a different length pushrod was required manual drum car vs power drum car.
2. if so, where can i get one , what will fit,
3. were the factory ones adjustable??
4. can i cut and weld to lenghten the one i have.
4. is there an aftermarket one that is adjustable?

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Old 08-14-2008, 03:18 PM
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push rod

the master cylinder could be the wrong one. what you can do is slide the master cylinder off the booster -you don't have to remove the lines to do this , measure the depth of the hole in the back of the master cylinder. you can use a Phillips screw driver shaft or a pencil to do this .. take the measurement to the auto parts store and check what they have on the shelf to see of it match's.-- to answer your question about the push rod , they do make differant lengths and there a special tool to measure this at the front of the power booster. check the hole in the master first this is the easiest to do. if the master checks ok you may have to go to a shop that does power booster work. good luck
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Old 08-15-2008, 06:34 AM
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Thanks.

Anybody know if i can lengthen my pushrod by cut and weld or buy an adjustable one?
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