Highway 138 on the north shore has truck traffic, but usually a decent shoulder. I'd say the worst parts are coming out of the Saguenay ferry. Let everyone pass you as there's no room just out of the boat. Be careful during the subsequent waves of traffic where you have a bunch of impatient drivers trying to pass one another. The other is through St-Tite-des-Caps. The "shoulder" 18" wide with frequent drain grates but at least you get 4 lanes so there's room. It's still a nice ride. You can take highway 362 (very hilly) and 360, as well as local roads in a few places. Staying on highway 138 south of St-Tite-des-Caps is kinda fun if you like downhills. BTW, there's much less, if any truck traffic on Sundays.
Last edited by Erick L; 06-25-14 at 09:45 PM.