Truck Repair: f-150 4.9 6cyl hydrolic clutch, clutch master cylinder, brake master cylinder

Question
Hi to make a long story short,,I filled my hydro clutch master cylinder with hydrolic fluid.lol,found out ya don't do that,truck started acting very strange when I pushed in the clutch it would lock up the wheels,so I found the rubber thing inside the master cylinder to be swelled about 3 times its normal size,well I tried to get what I could out of the reservor and re-filled with brake fluid ps.I spose next time I will read the directions on the cap..I re-placed the rubber thingy with one from the junk yard cause ya can't but it seperatly,,well now it is really screwed up wont even go into 4th gear and doing all kind of wierd stuff in the gears it does go into,,when moving down the road it's jerking,wheels locking up,gears grinding loud and bad,without me touching the shifter,I tried pumping the cluch pedal about 50 times,no help I really did it this time,any help would be greatly apreciated,,thank you so much,,eric

Answer
Hello Eric,
You will need to replace the clutch master cylinder, and the slave cylinder, because that oil will have swelled up the rubber cups in both of them, and their is no way to shrink it back down.
When they are out, you also need to flush the line out with a bunch of brake parts cleaner, or replace the line also.

If any of that oil was used in the brake master cylinder, that system will also need some major work.

I don't know what the grinding, jerking, and other wierd stuff is caused by unless it is the brakes locking up for that same reason.

Van