I assume you mean the brake master cylinder. I am doing the clutch master cylinder on mine. All the rebuilds I have done of these hydrolic cylinders are as follows:
Get the kit from an auto parts store. You can also buy the cylinder rebuilt for about four times as much.
Figure out how to remove and disassemble your current cyl. PAY CLOSE ATTENTION TO THE ORDER AND ORIENTATION OF THE PARTS AS THEY COME OUT,, SOMETIMES UNDER SPRING PRESSURE.
Clean the cylinder and all it's ports with brake fluid and a clean rag.
Pour some brake fluid into the cylinder to lubricate the sides and ease reassembly. This will also facilitate the squirting-yourself-in-the-eye phase of reassembly.
Put the new parts in as the old ones came out.
Install your good-as-new master cylinder.
Fill and bleed the system. This last step is easier with a friend to help. Preferably some one who knows more about this process than you or I.
GOOD LUCK
Mazda was sold to ford, that is a ford truck. You can go to the library and copy (for some change) the papers from the repair manuals.
You have to install the master cylinder that is compatible with your truck otherwise if will not work. There is really no difference in a 2wd & 4wd when it comes to the master cylinder.
buy the haynes repair manual its like 25 bucks and it will give you anything you ever need to know about your truck
on tims HEAD
Yes
google this ...mazda-autobestanswer. details there about the code 1506
The bigger one for your discs.
You can replace the clutch master cylinder, on your Ford F250 7.3 liter super duty truck, by first removing the hydraulic line. Next, unbolt the master cylinder. Reverse the process to install the new master cylinder.
To post a manual or excerpt from a manual in this area would constitute a violation of copyright law. Instead of repairing it, why not just replace both the master and slave so the truck is fixed?
It is called a Master Cylinder. Click the link I am posting.
The slave cylinder is not on the firewall, it is at the transmission. The master cylinder is on the firewall.
Un hook the clutch pedal from the rod and then twist the master cylinder counter clockwise to release it from the firewall then drive out the pin holding the hose to the master cylinder, then reverse this to install the new one.