After having the Chrysler Jeep mopar performance part# 77072353ab_fs installed by a Jeep dealer, there is a serious issue that I have discovered. With Jeep vehicles that have been lifted using the oem mopar 'Jeep performance parts' 4" lift kit product, whereby following 'Jeep dealer professional installation' and in certain driving scenarios, the rear propeller shaft comes into direct contact with both the vehicle's evap tank on driver-side and fuel tank on passenger-side under certain raised front independent right or left wheel articulation scenarios and I have personally incurred damage to the vehicles oem propeller shaft and boot sleeve and the adjacent evap tank and fuel tank items from the oem propeller shaft making direct contact with both the evap and fuel tanks under the vehicle. This 4" lift kit is a mopar sold and Jeep dealer installed product and they refuse to reimburse me for replacing the oem rear propeller shaft with an after market rear drive shaft that they recommended and installed that mitigates the issue of articulation contact of their oem propeller (which is larger in diameter than the alternative shaft replacement they subsequently installed). I have documented pictures and videos of the oem drive shaft hitting the adjacent items under the vehicle which I also provided to the Jeep dealer in my city of residence. However, dealer said that unless they have a safety recall or something else from Chrysler indicating this as a safety issue they can't do anything about it for me... for some unlucky people, the gas tank rupturing and catching fire will be the only event that makes them aware that this is a problem that Chrysler, Jeep, mopar have not previously realized nor addressed...

- Boulder, CO, USA