Ok guys, it's BEEN A WHILE since i've been on here. I've been having some crazy cab vibrations for a while now around 45ish. I know for a fact it's not a wheel balance issue, because when i had my last set of wheels and tires a few months ago i had the same issue. I had read on some guys IG that he jad the same issues, and it turned out to be the cab mounts, idk how that would work tho. I guess what im asking is if you guys could post things that could possibly cause this dreaded cab shake (shocks, diff, leafs, etc).

Thanks in advance guys

 

Bushings are a good source of rattles, cab mounts/Control arm/Spring bushings/etc. You can get a complete kit of all bushings from Energy suspension for a hair over 300 bucks, with detailed .pdf guide for installation and that should hammer out any issues as well as giving a more showroom quality ride.

You can visually inspect most of the bushings and see if they are abnormally worn, but I wouldn't discount a driveline issue. Check for play in the driveshaft(s). Mine vibrates pretty good between 50-60 but smooths on out after that, I'm eyeballing my tires, since they are more of an all-terrain LT type and I have already checked my bushings and drivetrain for play.

 

Lose a weight off the driveline? That will give you a big vibration at higher speeds, but might at higher rpms in lower gears also.