Apologies in advance if this is a really noob question.

Winter finally ended here in the NW which means its time to take my studs off. I swapped my non studded tires back onto my truck, but being the new truck owner I am I didn't pay attention to which tires were from the front and which were from the back. I believe that I got them on correctly but I'm not positive. Now when I got 50+ mph I'm feeling a vibration in the body and the steering column that is really noticeable. Enough that I can see it in the hood and it shakes the quarters in my console. At the same time I've got a failing CV boot on the drivers side that is slinging grease, but it hasn't been exposed to any dirt or grime other than the highway. I've heard that they actually balance the tires with weights, but I'm not sure how to determine which tire belongs where just from looking or if that's even the issue at all. Any ideas how to troubleshoot this issue?

 

Yes, they balance tires with weights. Sounds like yours need balancing or you have something else wrong up front. Did you check the air pressure? You may be able to tell the front ones by the brake dust on the rims. As for left to right, you have a 50% chance of being right provided the brake dust is a clue.

Tires are normally rotated front to back every 5000 miles for best wear unless you have some special tire that has a different requirement..

 

I checked all the pressures and they are all within half a pound of each other. Didn't think of brake dust, I will go give it another once over and see if I can pinpoint the fronts.