zf6 clutch question

[old96stroker]

I had a new luk brand clutch put in my black truck about 6k miles ago, all new parts, my question is it is getting a little tough to shift and has very little feathering in the clutch. Is it possible that the slave cylinder is getting "weak"? I replaced the slave cylinder july of 2011, it came from o'reilly's, any comments appreciated, I know it has been cold outside and first thing in the morning it is usually a little tougher to shift but doesn't get much easier after use, like I said any comments or resolve is appreciated, is there a better slave cylinder made for this transmission, thank you.

 

[old96stroker]

Any ideas, please

 

[SDstroker]

Are you talking like not much pedal movement between disengaged and engaged?
As far as shifting I run synthetic.

 

[old96stroker]

exactly sdstroker, and it doesnt feel like when the clutch pedal is all the way down maybe not completely engaged, brand new clutch though and never been slipped, i think i am just going to put a new slave cylinder in just looking for a better slave cylinder, thought i would have got a few more opinions on this.

 

[co04cobra]

Put a complete pre-bled kit in. There are a few threads on this, but advance auto "did" show one that is aluminum instead of the plastic lines. IMO. That is the way to go.

 

[old96stroker]

Thank you cobra, I had heard that advance had a better setup, the one that I put in last time from o'reillys was prebled also but I remember looking at it and thinking the lines looked awfully chincy, thank you for the advice, I think that is the direction I will be going, thanks again!

 

[jaybuller]

let us know how it turns out with the advance aluminum setup...

 

[kadeninabnitt]

I don't know if the sd trucks are setup the same but my obs has a little plastic coupler where the pedal assembly connects to the clutch master cyl and when they wear out you get the same problems you're having its like a 5 dollar part if that's the issue save a bunch of money and trouble

 

[lincolnlocker]

it may be what everyone said but i know my shifting improved when i switched to this fluid compared to the stock fluid. clutch is shot to, been waiting for my dual disc to get built....http://img.tapatalk.com/d/13/02/21/y8u2y7e3.jpg

 

[kadeninabnitt]

it may be what everyone said but i know my shifting improved when i switched to this fluid compared to the stock fluid. clutch is shot to, been waiting for my dual disc to get built....http://img.tapatalk.com/d/13/02/21/y8u2y7e3.jpg

Pretty sure your supposed to use atf I know my zf5 calls for atf

 

[vcassens]

Pretty sure your supposed to use atf I know my zf5 calls for atf

My zf6 in my last truck took atf as well

Sent from my SPH-L900 using Tapatalk 2

 

[lincolnlocker]

its what cross references from the 08-09 zf6.. ford required it in all diesel applications
from then on. here is the thread i started on fluids for the zf's.. do what ya want.. this chit works and pours better then mercron, and protects better as merc v is only equivalent to 30 weight i believe.
http://powerstrokearmy.com/forums/showthread.php?t=29422

 

[old96stroker]

Thank you for the input guys, lincolnlocker, I believe that is the same amsoil product I put in last fall, put a new front door in for a customer and he hooked me up, he is a amsoil dealer, did seem to quiet the cavitation growl that these noisy bastards have, going to try the advance pre bled unit out pretty quick, will let you know results, thanks all again.

 

[HaysKSFirefighter]

I am running the same amsoil MTL, I love it! I also am running the advance aluminum master/slave cylinder kit and it made a good difference from the motorcraft plastic ones.

 

[lincolnlocker]

I am running the same amsoil MTL, I love it! I also am running the advance aluminum master/slave cylinder kit and it made a good difference from the motorcraft plastic ones.

how was instal on that aluminum master cylinder? before to long, im going to be swapping the clutch out... dont know if i should just go ahead and get one or not?

live life full throttle

 

[HaysKSFirefighter]

If you're already going to be in there I would. It's not hard at all. The worst part is getting the rod out of your old master and into the new one.

 

[lincolnlocker]

by chance have a part number? and how come the rod needs to come out?

live life full throttle

 

[HaysKSFirefighter]

I'll try and find that info, it's in another thread. The rod in the kit is a bit different and doesn't work as well.

 

[lincolnlocker]

oh ok, so you have to swap them out?

 

[HaysKSFirefighter]

Take a look at my thread and the one that was linked to in it. I did because they said to and I didnt want to have to tear it out again.

http://powerstrokearmy.com/forums/showthread.php?t=24036