The first stretch of the AlCan between Dawson Creek, BC and Watson lake, YT can be a bit daunting for first-timers.
Make sure your brakes are in top condition, you will encounter some serious grades. Nothing steeper than 8% (on the Canadian end, at least) but they can (and do) go on for miles.
That was sage advice about stone protection and yes, some of the truckers up there can be a real treat.
Oddly enough, there is a stretch in northern BC where you will encounter buffalo all over the road. At all times watch for wildlife.
The road is in decent shape but expect to encounter construction at various points.
DO NOT rely on your GPS for a list of gas stations -top up when and where you can. And do be sure to budget for the extra cost of fuel up there -I've paid as much as $1.70 a litre in one out of the way spot.
Well worth it for the country you'll be seeing, though.
2009 Jeep Wrangler Unlimited
2012 Flagstaff T10RD