Best Clutch for G56: Several Quality Options

Experts have called it ‘the last of a dying breed’. Sure, the G56 saw the sunset falling on truck manual transmissions…

So what?

It’s not like all the Dodge Ram running on it suddenly disappeared or something. And where there’s a manual trans, you know there’d be a clutch too.

The best clutch for G56 options come from two brands – South Bend Clutch and Valair. Here are their most popular kits:

Of course, there are other cheaper options too. I’ll discuss them later on, though none of them would be able to match what you get with South Bend or Valair.

Let’s first discuss something important, though. It has to do with the purpose and limitations of the truck setup you plan on running.

I wrote about this in my post dedicated to NV4500 & NV5600, the predecessors of the G56 transmission.

Going big isn’t always the best option for your vehicle.

Double discs can get noisy during neutral to idle times, and they are notably more expensive. If you plan on just commuting around your city, you have zero need for a DD clutch.

On the other hand, trying to tow heavier stuff around on a single disc will be a challenge.

Take the single disc G56 stock clutches, for example. These were made to be optimal for up to ~9-10k with a stock truck. Once you go beyond that and throw in some extra HP, the nightmare begins.

The same applies to many single-disc replacements when you throw in heavy towing. Trailers will jerk or even worse, actually slip.

Extreme towing warrants a dual disc clutch every. single. Time. The most popular is South Bend SDD3250-GK.

Regarding single vs dual disc clutch usage, here are the results of a CumminsForum poll:

Which is in line with what I’ve seen too. Most people running a G56 transmission prefer double disc clutches, simply because they want to haul stuff a lot.

As I pointed out earlier, the most popular dual disc clutch you’ll see people running is the South Bend Clutch SDD3250-GK.

This one’s purely the G56-specific variation of the SDD3250 series. I recommended the 3250-5 variation as the best dual disc for NV4500 for the same reasons:

• This clutch is an absolute monster capable of towing 30k with no sweat.
• At 650 HP and 1300 torque, you’ll be covered no matter what setup you run.

Admittedly, the power has a trade-off. You’ll definitely hear more gear rollover noise, especially on lower RPMs and higher gears.

This clutch kit is not recommended for stock applications or for racing/competition uses. Keep that in mind, otherwise, you’ll compromise your G56-running truck!

Using thicker oil might help out with the problem, though it’s not guaranteed.

This Valair lives up to its name, as it packs a punch while reducing the amount of gear rollover noise or rattling.

Unlike the SDD3250-GK, the Quiet Street GQ56DDSN runs well on stock applications. It shifting feels the closest to OE shifts, and there’s little to no reverse bucking going on.

At the same time, the Quiet Street dual disk kit vastly outperforms any stock clutch parameters:

• A respectable range of 500 to 650 HP of optimal operation. The 550 HP middle ground seems best.
• While not as powerful as the South Bend SDD3250, it’s still towing-ready for anything from trailers to average-sized boats.

Quiet as it is, you will still hear some noise.

The rules still apply: lower RPM while being under heavier loads, or idling will cause noise. However, it’s way better than its South Bend counterpart.

If you want to skip on towing trailers, boats, whatever there is…Well, you don’t really need a dual disc clutch kit for your G56 transmission, right?

This Valair single disc is a worthy successor to any OEM clutch. In fact, it builds on the OE foundations and infuses your engine with some much-needed power and durability improvements.

First of all, the calibration parameters here are 400 HP and 900 ft of torque. Respectable amounts for a single disc, making the Valair a more heavy-duty option.

This means that you can use it for light towing. Don’t expect it to be perfectly stable if you back up a trailer, though. There will be some jerkiness.

The NMU70G56-01 comes with an extra perk: you also receive a full HD hydraulic kit with it. The serial number of the hydraulics is NMU70HYD-03 and it costs a pretty penny by itself.

This justifies the higher price of this Valair compared to other single disc clutches from the brand.

There are plenty of cheaper options for G56 clutch kits.

Several options are South East Clutch Store (check it here) or Efortissimo Racing (check it here).

I’ll be honest, though: clutches are the last place I’d be looking to save money. This is too crucial of a truck part to throw in some dubiously manufactured replacement.

There’s a reason why South Bend Clutch and Valair are the go-to recommendations whenever you go to any Dodge Ram forums. These are established sellers with decades of history, awesome customer support, and expert consultation sessions if you need them.

Much like my other posts, I’ve made an effort to find a suitable DIY video showcasing the process of replacing your clutch kit.

This one features swapping out a dual disc clutch on a 2007 Dodge Ram with the G56 transmission.

It’s sped up so you can watch it quickly, without losing out on its comprehensive explanation:

Well, I hope I got my main points across. First, don’t overdo it if you don’t plan on using your truck for towing. A single disc clutch kit will be just fine for casual street driving.

Second, don’t cheap out when it comes to replacement parts. I’d understand it with something smaller like ball joints or other components. For clutches, though? Never recommended.

For more Dodge-related content, you can check my guide on aftermarket headlights or my recommendations for Ram 2500 steering stabilizers.

And as always – let me know what clutch option you decided to run in the end. Don’t forget that both Valair and South Bend Clutch are open to consultation. They’re a friendly bunch of fellas who respect each other a lot. You can find the Valair site here, and the South Bend site here.

Cheers!