We want our trucks to do everything. Hit the trails, tow the boat to the river, take us to work and transport the family on long road trips. Adding an air bag system to your full-size truck or SUV has always meant scratching at least one of those off your list. With most air bag systems, the lower air bag mount is placed above the leaf spring significantly reducing wheel travel by design. Your air bag system should compliment your truck, not inhibit its ability. Daystar’s new Air Bag Cradle* (Patent Pending) mounts to your trucks lower suspension providing more room for the air bag to safely cycle with no loss of overall wheel travel. Inferior lower air bag mounts restrict air bag movement using inadequate space, which can lead to unexpected damage to the air bag. Made from extremely tough Daystar Polyurethane, the Air Bag Cradle allows for full suspension travel, while still allowing the full benefits of your air bag system. The Air Bag Cradle fits most full-size pick up trucks, and SUV’s running 6-inch diameter air bags and are made in the USA.
Thuren's Long Travel leaf springs are designed to give the most suspension travel possible, while still being able to hold up to extreme off-road abuse. These leafs are very soft, helping to improve street ride quite a bit.
- Heat treated, shot peened, and manufactured from the highest quality materials available.
- Can supply true, clean, 18" of active suspension travel.
- Extended design uses shackle length and motion ratio to amplify wheel travel.
- Very soft spring rate and ride feel, more like a 1/2 ton truck.
- Designed to mount using the factory OEM u-bolts.
- High quality PTMEG Polyurethane bushings.
- Moves rear axle back slightly to help 37" tires clear the fender better.
- Almost completely eliminates axle drive chatter in soft terrain/sand.
SHACKLE IMPORTANT NOTE: These leaf springs are extended length, MANDATING Thuren's shackles are used, and the longest length position on the shackle MUST be utilized. Leaf spring damage will occur if the assembly is not installed properly!
If you tow/load heavy weight often, please consult with us prior to purchase to make sure these are the right leafs for you!
Due to limited production, Thuren Fabrication items cannot be expedited. If expedited shipping is selected, we will credit back the shipping difference and ship via standard Ground shipping. Thank you for your understanding!
- Fits 2003-2013 4x4 2500 trucks, 2003-2012 4x4 3500, and 2005-2013 Power Wagons.
- The greaseable 75D bushing we use as the shackle pivot provides smooth bind-free shackle swing.
- 3 position height adjustable, when used with OEM or other brand leafs. Stock height, 3/4" lift, and 1-3/4" lift options.
- Thuren LT leafs must use the longest span mounting, so they become non-height adjustable, with Thuren LT leafs.

