When considering the parts of a high-performance vehicle, we often pay a lot of attention to the power the engine makes, the strength and gearing of the transmission, and the rear differential's ratio and durability. However, there's another important link in any powerful car, between the engine and transmission, that plays an important role in the car's performance. Whether it's a torque converter in an automatic application or a clutch in a manual transmission car, the improper part in this area can make or break the way the vehicle launches and responds, and it affects durability as well. And while the wrong torque converter may not offer optimal performance, the wrong clutch can literally self-destruct, slipping and heating itself up until it won't work at all.
It's no secret that the new 5.7 and 6.1 Hemi-powered Mopars have plenty of power to test the traction and drivetrain parts of these new cars. The 6.1 Hemi is particularly strong, and with aftermarket bolt-on parts like cold air kits, tuners, nitrous oxide, and even blowers available for these vehicles, many of the factory parts behind the engine are taxed to their limit. Since the factory clutches in these cars were designed with longevity in mind and were built to handle stock power and not much more, the clutch is likely one of the first items that will need to be replaced in your Mopar, whether preemptively or post-failure. The folks at SpeedFactory have lots of experience with fast late-model Mopars, so we decided to follow along as they replaced the factory clutch with a dual-disc unit from Centerforce.

Gaining access to the clutch...

Gaining access to the clutch is just like any rear-wheel-drive car. The exhaust system including the Oxygen sensors must be removed after disconnecting the battery. Then the transmission crossmember can come out and the transmission is removed with the help of a transmission jack. The clutch's hydraulic slave cylinder must also be disconnected, and it stays with the transmission.

With the factory clutch exposed,...

With the factory clutch exposed, the pressure plate, disc, and stock flywheel can be removed, making room for the new Centerforce parts.
If you're like many enthusiasts, you may hesitate to perform mechanical work on your late-model Mopar, assuming that it's just too complicated. And while the computers and wiring in these cars are no doubt more complex than what we find in our classic Mopars, performing work like removing the transmission to change the clutch is largely the same as it is in an older Mopar. So if you're comfortable changing the clutch in your Road Runner or Coronet, there's no reason you can't change the clutch in your new Challenger or Charger. If you don't have the tools or skills to perform the work yourself, we suggest you contact a shop like SpeedFactory that can install the clutch for you.
Like most cars, changing the clutch in a new Mopar requires getting the car off the ground with either a lift or jackstands, removing much of the exhaust, the shifter, driveshaft, and then transmission to gain access to the flywheel and clutch. With the proper tools and equipment, SpeedFactory's staff made this job look easy, quickly pulling the transmission and swapping out the clutch for the new Centerforce dual-disc unit. With not one but two friction discs, separated by a steel plate, this clutch system offers more than twice the clamping force of the factory unit, with similar pedal effort. Additionally, the Centerforce unit offers a nice blend of performance and drivability, with plenty of clamping force to keep the clutch from slipping, and a soft enough application that the clutch doesn't act like an on-off switch when the pedal is released.
If you're driving a late-model Mopar with a manual transmission, you'll eventually need to either replace or upgrade the factory clutch. Since the clutch is designed with a friction surface that wears, much like brake pads, it's not a matter of if, but when you'll have to accomplish the work. If you're like us and have already performed modifications to your car's engine, it's just a good idea to eliminate the factory clutch, replacing it with a more durable Centerforce unit. You'll no doubt appreciate the added performance, reliability, and peace of mind knowing that the clutch will handle all the power your Hemi can give it.

The factory clutch assembly...

The factory clutch assembly is also a dual-disc unit, with the second disc built into the pressure plate assembly.

Designed for easy production...

Designed for easy production and stock power levels, these clutches can be a weak link in your late-model Mopar.

The Centerforce clutch kit...

The Centerforce clutch kit comes complete with a new flywheel and new friction discs separated by a steel plate. Notice how the clutch contact area is recessed into the flywheel, allowing the assembly to fit in place of the factory clutch.

Most factory clutches have...

Most factory clutches have grooves cut into the friction material for cooling, with minimal benefit since the grooves are so small. Centerforce uses individual pieces of friction material for maximum clamping force, separated by large areas for air to pass through, allowing maximum cooling of the clutch assembly as well.

This installation requires...

This installation requires a new Centerforce flywheel, which is balanced and torqued to the crankshaft at 55 lb-ft.

The first friction disc can...

The first friction disc can now be installed onto the flywheel.

Then the steel separator,...

Then the steel separator, or floater drive plate, is installed.

Using the provided alignment...

Using the provided alignment tool, the second friction disc can be put in place, and we're ready for the new Centerforce pressure plate.

With the rest of the new components...

With the rest of the new components in place, the pressure plate is installed and torqued to 35-38 lb-ft.

The new clutch, discs, and...

The new clutch, discs, and pressure plate install easily, right in place of the factory units. Now we're ready to reinstall the car's transmission.

Prior to installing the transmission,...

Prior to installing the transmission, SpeedFactory uses a zip tie to hold the wiring harness and associated bracket out of the way.

With everything disassembled,...

With everything disassembled, now's the time to change the throw-out bearing. The factory unit can be retained if it's in good shape, but if the stock clutch showed significant wear, we recommend changing the bearing as well.

The transmission is now slid...

The transmission is now slid into place using a transmission jack, and attached in the reverse order of how it was removed. This job can also be accomplished with a floor jack and the car on jackstands, but a lift and transmission jack definitely make the job easier.

Here's something your A-833...

Here's something your A-833 four-speed doesn't have-a slave cylinder. Reconnecting this component is one of the final steps before reinstalling the driveshaft.

The Centerforce clutch is...

The Centerforce clutch is a great upgrade for your manually-shifted Mopar, eliminating a known weak link. SpeedFactory can hook you up with the parts you need and can even install the new clutch for you if you'd like. This upgrade will definitely get your Challenger ready for some track duty, without worrying about clutch slippage ever again.