I have a 94 850 manual wagon that I installed a class 3 hitch on to pull our 2800# pop-up camper. Pretty easy install, although wiring the trailer connector can be interesting.

I would suggest going for class 3 over class 2. Same 3500# trailer weight but 500# tongue weight instead of 350#. Doesn't hurt to have little extra. And both come in models that are not very noticable when not in use and the ball removed.

To get the brakes on the trailer to work (unless they are hydrolic) you'll also need an electric brake controller. If trailing in snow I strongly suggest that your trailer have electric brakes and that you have them working as a trailer has a tendency to push you pretty good or they can easily jack-knife on slippery roads. My other 'car' is a pickup truck I haul our horse trailer with and if not for the ability to activate the trailer's brakes there are a couple times I would have made a real mess on the road. And I thought I WAS driving carefully. But that ice can (and will) sneak up on you.

Don't over drive! On our camper max speed was about 63 mph before we started getting some fishtail effect. And we went into the mountains so had more then a few times dealing with steep hills & manual tranny. First trip was about 100k miles ago so I guess no harm, but expect starting (& stopping) to take extra time. So don't pull out in front of people and leave extra room to stop.

The only real precaution I took was to change the gear oil.

And as said elsewhere - watch the tongue weight. to much weight in rear means front tires have less traction.

Good Luck!