Installing a new Brake Mster Cylnder

[Pootz22]

Seen a couple of the post where people had problems and installed new ones but I have a couple questions. Do I need to order anything but the master cylinder when doing the replacement? Someone mentioned that the pushrod be the same length, how would I know this? Is it obvious when I get the new one and old off the car side by side, or something I should look for when buying? I googled the part and shopped a bit but saw nothing on pushrod length while shopping.

The problem with the '87 B2000 is that it has very soft brakes and wont bleed out after I replace the Brake lines. The brakes work but I wouldn't want to have to stop quick, I usually leave distance and pump to stop signs or down hills. The car has 72k original miles and the pads look good.

I appreciate any info you can give.

Thanks!

[toro2]

Just buy a new master cylinder, be sure to follow the bench bleeding instructions,and use the old push rod,bleed all yor wheels,starting with your rear left wheel,..

[Cusser]

Measure the depth of the recess on the existing MC. Then measure on the new MC. If they're different, adjust the pushrod by that amount.