Thank you! We're all about a no B/S approach to this stuff!

How did the add a pack affect the squat when you put a trailer on it?

Squat less with add a pack because there is less travel with it but also keep in mind the full packs lifts the rear some not much I think your better of contacting CJC or Carli or Thuren on exact specs they have specific info good luck widat but the fulls give a much smoother ride but your gunna need minimum fox or carli shocks to get the full benefit

We’re in the process of filming! We’re trying to get some footage in the dirt to show the difference between factory and the Carli sway bar so it takes a little longer.

It’s coming! We’re trying to do two videos a week now to answer all these questions! Haha

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Yes it’s an added component. Check our website for more info!

It's a massive change for the better!

They make a huge difference in any situation compared to the factory leaf springs. Quality shocks also help.

Correct. The Carli long travel air bags are also specifically designed to maintain travel and suspension flex as well so you have a set up that can tow and play.

With a Commuter system you have to run either stock leaf packs or add a packs as that's what the shock length and valving was designed for. That said, you'll get a huge improvement moving to full springs, but that would require going to a Backcountry or higher system.

Yeah you’ll want to stick with the add a pack. Carli does have an HD full replacement pack designed for 1,500 pounds of constant load as well. Of course you can also do a custom Deaver leaf pack designed for exactly the weight that’s in the truck!

@@CJCOffRoad does this add to ride height? Also I’d love a smoother ride with out adding lift. Is there a way to do that?

Yes you absolutely can, which is exactly what the Carli full leaf springs are. They completely replace your stock springs with a softer setup.

We would recommend going with one of Carli’s HD leaf spring options, which are designed for constant load over 1k lbs and then likely the 2.5” or 3.0” king shocks to get the damping and control necessary to tame a heavier rear end.

@@CJCOffRoad thank you for the reply!

Exactly! We just pair it with Daystar cradles for extended travel. There’s some tricks with the hardware etc to make it all work.

@@CJCOffRoad ok I like the sounds of this...could it work with my airlift 5000 setup that I currently have too, or would that airbag setup not work? I live in salty midwest so I have some concerns with running deaver springs as they dont hold up well in our conditions...had them on a 17 raptor...rusted up quickly. Looking forward to seeing this 3.5 inch dominator setup with add a pack and air bags on a 2020 F350! Let me be the guinea pig!!

If you ordered from us, just shoot us a reply to your order receipt!

Sadly no.

With the Commuter system the add a pack is actually the best option! If you move up to the Backcountry the shock tuning is designed to run with the full leaf springs, and then those become the smoothest option. All depends on how you want to do things! Feel free to email us any time for help!

@@CJCOffRoad thanks! When I hook up the trailer now there is a really minimal amount of squat. Would the add a pack eliminate that?

It doesn't add capacity, but remember that squat when loaded is pretty normal! You could always use Timbren bump stops or airbags if it bothers you, but those will both take away from ride quality.

What year, make and model truck do you have?

The add a pack isn't in addition to the factory leaf pack. It replaces the lower most part of the pack to make it more compliant over small bump hits. For decreasing squat under a load, your best bet is to use air bags.

@@CJCOffRoad bags are too temperamental and compressors go out in our Northern climate, I'm seriously thinking about grabbing these add a packs flipping those lower three inverted leaves on the add a pack so they engage right away, then deleting the factory 1 inch thick overload but leaving the blocks. this should attain approximately the same height seeing as I have supersprings on mine which have increased the ride height considerably

Look into Sumo Spring products. They are an airbag equivalent without an air compressor

Nope! It's a higher leaf count of thinner springs, which offers with more compliance with similar capacity. There's more to it than just the number of springs!

So would you expect better low speed small bump compliance or about the same. This would be going on a 2005 f250

It's slightly better, but not a huge change. Remember you're keeping full capacity so you can't make a physics miracle happen! The Carli full replacement leaf packs are night and day smoother everywhere, but you give up about 10-12% payload capacity.

The squeaking is sadly a byproduct of having a leaf pack with lots of leaves that is probably getting a lot of dirt exposure and moving/flexing to extremes. Start by jacking the truck up from the frame to droop out the pack so you can hose out any dirt and rocks that are between the leaves. Sometimes that alone does it. Other times we find the source of the squeak is the bushings at either end of the pack, so in that case you have to pull off the pack and grease them well. That maintenance is just part of owning a performance leaf pack!

Gotta pay to play then. Damn the leaf spring pack was a bitch to install alone lol.

CJC Off Road Do you know if there are greaseable spring bolts that are safe to use?

All height increases are listed on our website and depend on the exact make and model truck you’re asking about!

Sadly both brands aren't into comparison videos so we likely won't make one, but Thuren does use a softer rate pack. Carli's is still a whole lot softer than stock, but offers a little more capacity for trucks that still need to tow/haul. In our experience Thuren packs to best on trucks that pretty much only run an empty bed.

@@CJCOffRoad Either would be good with Timbren or Sumo springs when towing right? Or are they not good towing with these either? I have a set of Timbren’s and it takes about 5 minutes per side to install or uninstall when empty- just two bolts per side. I’d really like a setup that I could drive over cracks in the road/expansion joints(small,sharp bumps) without it feeling like the back of the truck is hopping around. I have stock leafs with Fox 2.0’s. Kind of curious about the difference between Carli and Thuren since they’re both hovering around $1500.

Yeah exactly! Those are our go to solutions for towing situations and work perfect with either brand leaf pack. If you aren't carrying much in the bed outside of occasional towing, you're good with either brand. Keep in mind too that the difference is small and both are a huge improvement. If you do go with a leaf pack, we highly recommend changing shocks too as Fox 2.0s aren't set up to control a full replacement leaf pack. Carli's backcountry shock package offers a ton of bang for the buck with their custom specs and valving set up for a full leaf pack.

@@CJCOffRoad Cool! Thanks for the info.

That ultimately depends on exactly what your needs are and whether you have variable or full time payload.

@@CJCOffRoad The first two or two and a half years it will have a 3500+ pound trailer in the back full time. Will need to off road to fish, hunt, and go back to logging camp.

Nothing to be afraid of! They're pretty simple to install and come with instructions.