Clutch issues

[Royhuff]

2012 mustang gt mt82:Back in December 2025 I replaced my clutch fly wheel and slave cylinder with all McLeod products I fully bled the system got rid of all air bubbles after and the car drove perfect no shifting problems what’s so ever. About two weeks ago I started getting a lot of clutch drag and struggling to go in gear at a stop so I replaced my clutch master cylinder With a luk one and I notice my clutch is still not fully disengaged I have to pump to engage

 

[Red-Candy-Metallic]

It sounds like you would have already checked everywhere for leaks, and the fact that everything worked for some time would suggest the install was done correctly. It does seem like a hydraulic issue to me and replacing the clutch master was definitely a step in the right direction. Do you have a separate clutch reservoir? Have the supply line and elbow been changed?

I also have a 2012 GT with the MT82. I replaced my clutch and related parts at around 70k miles, just this past September. I had a similar issue just prior to replacing the clutch parts and replacing the clutch master (Ford part) seemed to solve it for me. At that point, although things were working fine, I decided to preemptively replace everything. I have put about 500 miles on the car and so far, it feels great.

These are the parts I used:
Ford Clutch Master
Ford Performance Billet Steel Flywheel
Exedy Mach 500 Stage 1 Kit (clutch disk, pressure plate, pilot bearing, and hydraulic release bearing)
I also installed a new stainless-steel line, a new elbow, and a separate clutch reservoir.

 

[86GT351]

2012 mustang gt mt82:Back in December 2025 I replaced my clutch fly wheel and slave cylinder with all McLeod products I fully bled the system got rid of all air bubbles after and the car drove perfect no shifting problems what’s so ever. About two weeks ago I started getting a lot of clutch drag and struggling to go in gear at a stop so I replaced my clutch master cylinder With a luk one and I notice my clutch is still not fully disengaged I have to pump to engage

System needs to be cled again. Also did you install a shim for the slave cylinder? Makes a difference

 

[Dran08]

Would you happen to have a link for shims?

System needs to be cled again. Also did you install a shim for the slave cylinder? Makes a difference

Would you happen to have a link for shims?
I put a 2011-2012 mt82 in my 13 mustang. Put in all new clutch, flywheel, braided line, separate reservoir, TOB, pilot bearing, new shifter. Bled of course. But at a stop 1st gear seems to not want to go in as if the clutch isn’t fully engaging cause “clutch drag” so I’m assuming I am needing shims?