Carli Suspension 2 Degree Pinion Shim Kit 05-26 Ford F-250 / F-350 4x4 GDP-MK21318-BLKH and subject to strict quality

and subject to strict quality control procedures - the quality is second to none

controlling the turbocharger to maintain added boost and power as altitude increases

Some of the jarring ride of the Super Duty rear can be attributed to the factory vulcanized bushings in the leaf spring pack and shackle

And if you do any of the previously mentioned

Carli Suspension 2 Degree Pinion Shim Kit 05-26 Ford F-250 / F-350 4x4 GDP-MK21318-BLKH and subject to strict qualityEver had a shimmy in the backend of your Carli lifted Ford while underload? If you're running full spring packs and you have a 2020+ truck, it could be you're a little low on your pinion angle. Through lots of testing, Carli has come out with these 2 degree pinion shims to help get your truck back to riding smooth. Through their testing, they found it was happening only on 2020+ Ford trucks with Full Spring Packs. Factory leafs and or Add A Leaf