Anyone here owning at Frieghtliner M2-106 made after 2010, please check your front sway bar endlink bushings. If you have the old style installation, chances your top end link bushings are either coming apart, gone or starting to show signs of problems.
Frieghtliner on the M2-106 has known about this problems since they posted the service bulletins in 2010 and continued to use old stock till after 2014. If you are out of warranty, the corrective action could cost over $2800.00. If yours is the straight rod end link with bushings on top and bottom, that is the old stuff !!
The end link bushings are an ID of 1/2" and moving to poly version help.
If you recently purchased a sport chassis truck within the last two years, take it in ASAP and have Frieghtliner correct the problem under warranty, they will replace the whole front sway bar assembly with the correct one.