2013 KW T-660 Cummins ISX 15 CM2250 9-speed conversion (13speed)
This has slowly been getting more noticeable, but I have two shakes while driving.
First one, when I'm loaded, coming to a stop it'll start shaking the whole front end. I have new tires and had all the tires balanced. All brakes and drums are new. It'll shake enough to shake the hood a lot and steering wheel a little. Wth is this?
Secondly, a (what feels like internal) shake when pulling/getting up to speed, only at 40-45mph. Feels almost drive-line like. 6 month old carrier/hanger and U-joints. Not related with the shake, but I also have a "DA Left Wheel Speed Sensor" diag code showing on the indash, that no one seems to be able to make go away/fix.
When I take it to the shop to be looked into, I get the whole, "We have no way to duplicate the weight for that reaction, but everything looks to be safe and in good shape."
Any idea of what these two shakes may be? It's driving me crazy!