Posts: 395
Location: NW WI | Couple things:
One thing nobody has mentioned here is wheelbase. A Pathfinder/4 Runner has a pretty short wheelbase. MIGHT want to consider a longer w-base vehicle. Less chance of trailer sway especially in windy conditions.
On average, consider how far you are going to trailer the boat? The farther you go the more things like transmission and engine oil coolers will help the drivetrain handle the load as the miles pile up. Use synthetic fluids.
Get a tow vehicle with rear wheel drive. Just better pulling the boat out on slippery or steep ramps. AWD/4WD even better! Ask me how I know this!
If you go with a 6 cyl., look at what RPM range the engine makes it's best torque. Some engines make their best torque @ 5000 rpm. Who tows at 5K rpm?
I've towed with Suburbans, Trailblazers, minivans and currently have an 08 Grand Caravan with a 4.0L 6 cyl rated at 260+ hp. Best torque is on the 3K rpm range. I would not hesitate pulling a 620 Ranger a long way with this van, but I better be launching at a paved ramp that isn't real steep.
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