M4700B or M4700C

[Fast Lane]

Is it worth buying the M4700C or just stay with the B kit for new trac lok clutches?

 

[Fast Lane]

No one? Is it worth spending the extra money for the carbon fibre clutches?

 

[miscreant]

No one? Is it worth spending the extra money for the carbon fibre clutches?

I put the carbon fiber clutches in when I rebuilt my 8.8 last year and haven't had an issue. It depends really on what you wanna do with the car and how much power it's making. If its making a decent amount of power and you're abusing it whether that be a lot of drag racing or autocross, then I'd go carbon fiber. If you just have occasional spirited driving and occasional roll race on the interstate, I'd save the money and go with the standard clutches.

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[Fast Lane]

The car is stock and I dont race it but but my foot into it often... not a huge difference in price but was curious what others were doing. Also if there was in cons with the carbon clutches.

 

[miscreant]

I don't believe there are any cons with the carbon clutches. I'm not sure if they make more noise or not because my car is gutted and I can't tell. They will probably apply more aggressively but nothing that should be overtly noticable. If they aren't too much more, I would.just get the carbons. They are a tougher material and, if you plan on modifying the car the future, will be a great addition for peace of mind.

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[CobraEd]

I would definitely get the carbon fiber clutch packs. I have them in both my 03 Cobra 8.8" IRS & the swapped in 8.8" SRA in my 85 GT. You do need to add 1 bottle of friction modifier to prevent clutch pack chatter on really tight turns. I have not experienced any noticeable noise & have not had any chatter issues. Some people have reported using various synthetic diff fluids which supposedly already had friction modifiers built in, but they still experienced chatter. Do yourself a favor and add a bottle of friction modifier. Ford Motorcraft XL-3 for use with conventional gear lubes; Ford Racing CM195461A1 friction modifier for synthetics.

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[Fast Lane]

Thanks guys. It’s appreciated.

 

[Fast Lane]

I ordered the carbon fibre clutches

 

[Fast Lane]

I installed the carbon clutches and what a difference! Definitely worth it.