Are the axles Lippert or Dexter?
Montana does not install the hubs on the axles. While messing around with the axles and shackles, consider a product from MorRyde called X Factor. Have them on mine and my tires show no wear.
Plus, they include Wet Bolts. You will need 1 part number for the front and rear shackles and a second part number for the center support. 3 kits total.
http://www.morryde.com/products/108-...7-running-gear
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2012 Ram Laramie 3500 DRW 4x4 3.73 Tow Max Pkg B&W Companion 60 gal RDS aux fuel tank. 2014 Montana 3150RL, 2 A/C's, Leather, 6 Point Jacks, Splendede WD2100XC, Mor/ryde X-Factor, Duravis 250 tires with TST 507RV monitors. 2 x Honda EU2000's