A couple of things, first replacing those bushings may solve your wander issue enough where you're done with it. Second, your wander issue may be you and not the coach (no offense.) Remember in all of your other RV's you sit way back of the steer tires. With your new rig you're sitting on the point of the spear. You may even be in front of your steer tires.
Trick is to look a little further down the road and try not to over compensate. Get a few more trips under your belt before you start throwing a lot of money into the rig.
Also don't underestimate a good grease job and the slack it will take out of the steer components. When you have some idle time, take a look at this
CLICKY then at your checkbook ;)
