Towing 5000lbs with a 2wd 1970 c10?

[abadsvt]

Hello all! I am wanted to restore my 1970 c10 2wd to tow my new boat. Boat and trailer weighs just under 5000lbs. I am not towing the boat more than 30min drive. I was wondering if anyone else has towed a boat with one of these trucks? I am mainly worried about pully the boat out of the water but i see alot of 2wd trucks pulling boats out. What is your opinion? I am planning to make my truck posi with 3.73 gears. I am also thinking about putting 20" wheels with semi-low profile tires. I think the low profile tires might be an issue for pulling it out of the water but i don't know for sure. Any comments would be appreciated. Thanks ahead of time.

Josh