Clutch master cylinder

[07gts197]

Anyone remember my never ending shifting issues? Well I think I found the culprit. I almost never drive the car since I bought my crown vic for the police academy as its easier to drive long distances and actually better on gas... so today I was looking for spots to mount led's for footwell lights and noticed the clutch pedal switch was wet. There was something leaking on it from the clutch master cylinder. Great. I wiped it up and it didnt smell like anything but Im going to ass-ume it was brake fluid. Now Im in the market for a new master cylinder and a fluid resivoir relocation. Is there a good company that makes a metal master cylinder? Id like to get a 13 gt500 master cylinder but its not easy to find one, and really is it worth the extra cost?

Also has anyone here done a clutch resivoir relocation? I saw a thread where someone used one out of a gto I think. How did you mount it? Thanks for the help guys.

 

[golkhl]

2013 GT500 clutch master cylinder is FoMoCo part # DR3Z-7A543-A. There is one on ebay for $89.98 with free shipping. I did this mod, in addition to a McLeod clutch line and fresh Pennzoil syncromesh in the 3650. Made a huge improvement in high rpm shifting and the dreaded third gear lockout issue.

 

[07gts197]

Does it have a plastic eyelit like the gt piece too?

 

[golkhl]

Yes, eyelet is plastic. Not sure anyone makes one with a metal eyelet.

 

[07gts197]

I bought it anyway. I see some billet eyelets on ebay for like 40 bucks. I might grab one so it doesnt break. Thanks.

 

[golkhl]

Bumped my 2013 GT500 clutch master cylinder install thread over in the tech forum. Some pics/tips that might help you out.

 

[07gts197]

Thanks man I appreciate it. I hope installing this will help out my weird lockout issues as well. Fingers crossed!

 

[cavero]

Reviving this old thread... how did the master cylinder work out? Any problems in the last year?

-as far as the metal eyelet goes, my shop pointed me to this one

http://www.rjmperformance.com/05-14-mustang-gtgt500.html

It's expensive, but fully adjustable. I'm trying to find more info on it to see if it's worth the extra $$$. With an all metal construction, it's gotta be damn near bulletproof.

 

[Onelildude]

I just installed the GT500 piece but haven't driven the car yet. I highly recommend removing the entire pedal assembly because it makes the job 100000% easier. Once I drive my car i'll let you know how it is

 

[702GT]

I had the '13 GT500 MC in my '08 for about 2-3 years before I sold it last year. It was an immediate improvement over the stock GT, IMO. The larger bore gives the slave more authority over the pressure plate. I was using an Exedy Mach 400 clutch/pp, OEM (doorman) slave. The clutch/pp/slave already had about 25k-30k/mi on them when I did the MC upgrade. I also put a JPC stainless braided hydraulic line in place of the OE line (because, why not). Never had a clutch related issue after the MC went in. It did raise the engagement point on the peddle a bit. Previously, the engagement point was closer to the floor. After, the engagement point was about halfway or so. I could actually hammer gears with about 1/2 clutch pedal, which was nice in its own right. Took a bit of getting used to, but quickly became preferred. Since then, every manual I drive I tend to grind gears every once in a while trying to hit gears at 1/2 pedal, LOL.

 

[cavero]

I just installed the GT500 piece but haven't driven the car yet. I highly recommend removing the entire pedal assembly because it makes the job 100000% easier. Once I drive my car i'll let you know how it is

Ok let me know how it goes

I had the '13 GT500 MC in my '08 for about 2-3 years before I sold it last year. It was an immediate improvement over the stock GT, IMO. The larger bore gives the slave more authority over the pressure plate. I was using an Exedy Mach 400 clutch/pp, OEM (doorman) slave. The clutch/pp/slave already had about 25k-30k/mi on them when I did the MC upgrade. I also put a JPC stainless braided hydraulic line in place of the OE line (because, why not). Never had a clutch related issue after the MC went in. It did raise the engagement point on the peddle a bit. Previously, the engagement point was closer to the floor. After, the engagement point was about halfway or so. I could actually hammer gears with about 1/2 clutch pedal, which was nice in its own right. Took a bit of getting used to, but quickly became preferred. Since then, every manual I drive I tend to grind gears every once in a while trying to hit gears at 1/2 pedal, LOL.

Make me think... when i had my stock clutch the engagement point would be about halfway, but with the McLeod it's about a 3rd up. Very well could be it's not fully disengaging. I ordered the RJM MC, should be here by the end of next week.

 

[702GT]

Ok let me know how it goes



Make me think... when i had my stock clutch the engagement point would be about halfway, but with the McLeod it's about a 3rd up. Very well could be it's not fully disengaging. I ordered the RJM MC, should be here by the end of next week.

I remember my stock clutch being towards the bottom 1/3 for engagement. Even more so when I swapped to a centerforce DF. Had horrible gear grinding and lockout issues. Got better when I went to Exedy but about the same as stock. Totally improved with the GT500 MC and stainless line.