I've been towing my boat from Victoria to Gold River now for 5 years. I launch at the GR FN launch and run to the sound. I would never tow it into Tahsis having seen the GR-Tahsis road. I know others say its fine, but, gravel is gravel. It beats your car, boat and trailer. I pull a 22 ft GW 228 with a Denali. 6500 lbs loaded up. I've got an equalizer hitch and elec/hydraulic brakes My gross is 7900. This is my first year pulling this particular boat to Gold River and I'm not concerned. The last four years I used my Denali to pull my 21 ft center console which weighed 5500 fully loaded (with surge brakes) to Gold River. Never had a problem with it. There is a steep hill just out of Campbell River that requires some acceleration. There are some pretty tight curves around the lake and few places where it’s tight for people to pass you if you get people stacked up behind you. It takes me about 1 1/2 hours to do the CR-Gold River leg. I drive slow and take a couple of breaks and pull over to let people pass at every safe opportunity. I always take a spare tire for my trailer, emergency tire filler foam can, a jack capable of lifting 5000lbs, lots of wood blocks for stabilizing the jack, extra bearings, grease gun, extra trailer lights and a pile of other redundancy. You can never have enough sh*t if things go wrong. I also try to keep the fuel load low in the boat and car with no unnecessary equipment or fresh water in tanks. I always travel on Sunday because traffic into GR seems very low. I’ve seen lots of big boats being pulled in there every time I’m there. If the cap of you truck is within limits, you should be fine. Just take your time.