Carli's leveling full progressive rear leaf springs are a fantastic way to improve ride, control and handling on your Ford Super Duty truck. Designed to match a level height front, these leaf packs are offered in a few different configurations to ensure your capacity needs are met. All options massively increase wheel travel and articulation to over 12" so if you spend any time off road, it's a welcome improvement. These are also a critical part of softening the rear ride on your truck compared to the harsh, factory leaf packs- even on pavement. Carli leaf packs also mount directly to the axle, meaning you can eliminate the stock block and the axle wrap associated with them.
WHICH LEAF PACK IS RIGHT FOR YOU:
Carli offers these leaf packs in several spring rate variations depending on how you use your truck. The standard soft ride leaf packs are designed for trucks that spend any amount of time empty, and then have variable loads placed in or on them like trailers and gear in the bed. Since these are softer than stock, we pair them with these Full Travel Airbags to maintain towing capacity and variable bed load capacity. That allows you to have your cake and eat it too with soft daily ride and full ability to haul.
Carli also offers three levels of HD leaf packs. These are intended ONLY for trucks with full time in bed load like tool storage systems, in bed campers, service bodies, or welding beds. They are offered in the HD variant for about 500-1,000lbs of constant load, XHD variant for about 2,000 pounds of constant load, and XXHD variant for about 3,500 pounds of constant load. These can also be paired with Full Travel airbags for towing on top of the listed static loads, like pulling a trailer behind your truck with an in bed camper. We don't recommend these if your truck spends time empty, as you'll sit rear high and won't have the proper ride. These HD shocks also come with specific valving profiles of Carli Pintop shocks, so make sure to choose accordingly. We don't recommend using the HD leaf packs with any Carli 2.0 diameter shocks if it can be avoided.
UPGRADE OPTIONS:
This leaf pack can be optioned with shackles and pinion shims. We highly recommend adding Carli shackles as they improve ride and articulation compared to the factory shackles, which limit what's possible with the Carli leaf packs.
NOTE: These leaf packs DO NOT work with stock shocks from any trim package. Sadly factory shocks are too short, and the valving is significantly off from from what is required with these leaf packs.
INCLUDES
-Pair of rear Carli Progressive Leaf Packs
-U Bolts
-Rear Bump Stop Drops
Customer Reviews
These springs added a lot of stability. Previous ride was terrible. All body roll is gone. All bouncing is gone. Installed in combination with 2.5” coilover kit. The most dramatic improvement came from these rear springs. Highly recommend. Original leaf springs were about 30 pounds. The new springs were easily double this weight.
I have no experience in suspension. I have plenty of tools and jacks. We took our time. Work done in driveway. In my kit I had to drill out the bracket and move it down and bolt on. Also had to re-route the e-brake cable with some fab techniques.
We did one side at a time. Needed two jacks. Also ratchet straps to pull the axle in place after install. Took 5 days. Needed a few tools. One torque was 400lbs. Had to drop fuel tank to install the left side bracket. The frame on my old truck is rusty. This made me want to paint it after installing new components. So we did a partial coating on the frame for appearance.
Excellent support from CJC Offroad. Always responsive and informative. 5 stars. Excellent product. I would do it again easily. It was moderate to difficult effort and requirement as I don’t do this type of work. Very happy though and it was worth it. Sharing some photos of the install and bracket move. Also photo of the spring installed.
Carli Ford Super Duty 05-16 Deaver 2.5" Full Progressive Spring Pack
Great product! Made a huge improvement in the ride quality.
CJC off-road is awesome to deal with
We ordered Carli coil over bypass with upgraded rear springs. Unfortunately the sway bar linkage was missing. I want to thank CJC off-road for going out of there way to resolve this in an extremely fast manner. They have earned my business from here on out. The truck drives excellent with this suspension kit and I would highly recommend CJC off-road.
