Why not buy a Centerforce dual friction clutch?

WXman

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We've heard all along that the stock JL/JT clutch is super soft. My guess is they made it TOO soft, which allowed for too much slipping, which builds heat, which is ruining the clutches.

Instead of trying to cater to the snowflakes, they should have installed a real clutch in these Jeeps to begin with.

Good to hear that aftermarket options are available.





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SteveInOrlando

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We've heard all along that the stock JL/JT clutch is super soft. My guess is they made it TOO soft, which allowed for too much slipping, which builds heat, which is ruining the clutches.

Instead of trying to cater to the snowflakes, they should have installed a real clutch in these Jeeps to begin with.

Good to hear that aftermarket options are available.
I installed the Centerforce II which is really what these should have had from the start. This is not a dual disk clutch. It is a weighted flywheel clutch that is rated to around 500HP. It still has a softer clutch feel like you will get in most sports cars with an MT.

The clutch engages at the bottom of the throw, where an experienced driver expects it. The weighted flywheel means you can simply let the clutch out and it will roll. Feels like it will climb a telephone pole now. This is what I remember jeep MT feeling like.
 
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I installed the Centerforce II which is really what these should have had from the start. This is not a dual disk clutch. It is a weighted flywheel clutch that is rated to around 500HP. It still has a softer clutch feel like you will get in most sports cars with an MT.

The clutch engages at the bottom of the throw, where an experienced driver expects it. The weighted flywheel means you can simply let the clutch out and it will roll. Feels like it will climb a telephone pole now. This is what I remember jeep MT feeling like.
Gawd I wanna go do this now!
 

Mtpisgah

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What is the average labor cost for a clutch replacement on a Jeep? I would like to do this on my wife’s JL but also need to regear my JT.
 

SteveInOrlando

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What is the average labor cost for a clutch replacement on a Jeep? I would like to do this on my wife’s JL but also need to regear my JT.
I can't talk to the typical cost. Maybe someone else on the forum can. I didn't use a Jeep shop, I used a racing shop I know the owner. He is very detail oriented. All his customers know his shop is slow, but accurate. You will get your car back right. Even if there is a technical issue, you will get your car back right.

Depending on the shop, 3 to 8 hours at whatever the shop rate is.

Mine was definitely not ordinary as my crankshaft was larger than max spec from FCA, by 2.2mm, and they had to have 0.3mm machined out of the center of the flywheel where it fits over the crankshaft.

While this might bother most people, it doesn't bother me as this means mine fits like a blueprint.

If you plan on doing this yourself, just make sure you know a local machine shop in case you have the same need.
 

Hipbilly

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I'm leaning in this direction more and more, but much like tires or brakes, I keep feeling the need to wear out my current clutch before taking the plunge....
I can't find anything in the manual or service schedule, When do we expect the OE clutch to take a dump?
I know some of you are gonna say "any minute".... I'm just curious if this is within the next 5ish years... I'm already at 30k miles
 

SteveInOrlando

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I'm leaning in this direction more and more, but much like tires or brakes, I keep feeling the need to wear out my current clutch before taking the plunge....
I can't find anything in the manual or service schedule, When do we expect the OE clutch to take a dump?
I know some of you are gonna say "any minute".... I'm just curious if this is within the next 5ish years... I'm already at 30k miles
60 to 150 thousand miles depending on how much off-roading and how much you burn the clutch.
I have one friend that was a combine driver and he only uses clutch to get rolling, his last as long as his engine.
 

seven30

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My new manual Mojave has pleasant light clutch pedal pressure but the engagement ZONE is vague making 1st gear starts funky. I have 1300 miles so far and its improving but I'd sure prefer a traditional clutch behavior. Don't need a heavier pedal though. I wonder if Centerforce will have crank size issue will get sorted any time soon.
 
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My new manual Mojave has pleasant light clutch pedal pressure but the engagement ZONE is vague making 1st gear starts funky. I have 1300 miles so far and its improving but I'd sure prefer a traditional clutch behavior. Don't need a heavier pedal though. I wonder if Centerforce will have crank size issue will get sorted any time soon.
I might just call them this week and see if they've heard of other feedback similar to Steve's. If it's a ln infrequent issue I'm so close to pulling the trigger.
 

seven30

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I might just call them this week and see if they've heard of other feedback similar to Steve's. If it's a ln infrequent issue I'm so close to pulling the trigger.
So Im asking myself what is so different about this clutch setup and to me is the broad/vague engagement zone. It makes modulating the clutch engagement difficult without a LOT of pedal motion. An aftermarket disc(s) corrected that it would be sufficient.
 

kd1yt

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For whatever it's worth, I'm at about 8500 miles (the last year my driving has been very limited due to the plague and working remote (and I have a really short commute so I didn't rack up a lot of miles even before the work from home)) and I am noticing a recent significant improvement in the extent of feel and feedback in the friction zone (I had "clutch recall #1 done last fall). The feedback improved slightly after the clutch recall #1 and somehow, with no clear explanation, the feedback has improved further in the last few weeks. Still less feedback than any other MT that I have owned or driven, but it's an improvement and I am glad for it.
 

seven30

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That is good to hear. Mine is still improving at 1600miles as well. The mushy engaement promoted slipping when I took delivery for sure.

I'm certain this clutch design was well intention-ed with an eye towards prevention of stalls, perhaps to help C/D or Motortrend testers haha.
 

kd1yt

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This clutch's characteristics are a total mystery to me. The only people choosing and driving manual transmissions in this decade are people who truly, specifically want manual transmissions, and seek out the opportunity to find and buy (or order) an MT - who presumably also don't want a vague clutch. But I am still glad that Jeep has given us the option to choose an MT.
 

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