Its going to be close to 8k on a steel trailer. I would not want to do it with 1/2 ton and 5.0. It'll be shifting like crazy and probably destroy the tranny.

I had a 1999- 29' outlaw with twin 7.4 MPIs, when I got the boat I had a GMC 1/2ton extend a cab 4x4 with the 5.3. I towed the boat once with it and it was not safe at all and pushed the truck around. I ended up replacing the truck with a 3/4 -2500HD diesel GMC -4x4 Crew cab and it towed it with ease. If you put some good quality light truck -10ply tires on the 1/2 ton Ford it will make a huge difference on how the truck will handle with the boat behind it.

Thanks for all the replies. I think based on the info you guys provided I need to wait and get back to a heavy duty truck before boat shopping.

Speed is easy, its' prop walk and prop roll, and balance with a single, set up the motor to run a 30P Bravo 1 or 28P Maximus, that's probably more speed than you will probably, what engine is in it.

30P Bravo1 or 28P Maximus is the XR lower gear ceiling for power.

502 MPI can go to 555 MPI at 9.8/1 compression, how fast do you want to go.

My 252 Islander is 6,470 pounds with trailer according to my local scales. I tow it with a 2010 F-150 with the 5.4 engine,. 3:55 final drive. On flat roads I really don't even hardly notice the boat back there and I get around 13 mpg. Hilly country it makes its presence known, often times shifting down to 3rd gear and staying there whilst climbing a hill...and the mileage drops to about 8 mpg.

I wouldn't want to pull any larger load on the roads I trailer my boat, without going to a 3/4 or 1 ton truck.

I had an F350 with the diesel engine. Not dually but was 4 X 4. I pulled a 28 Pantera with twins and a steel myco trailer with ease. Need the 4X4 with low range to pull the boat out of the ramp though. I also had a Baja 24 outlaw with a single 502 which had a top speed of around 68 MPH. Had a Bravo one drive. But after a few years it started to develop too many cracks. Thats why I went to a Pantera. Sold that to get out of boating.

I have a 29 Outlaw with a single 502. I pull it with my 2012 F150 super crew. It pulls and stops great. I have the 3.5 ecoboost with the trailering package. My trailer is a tandem eagle steel. My trip to the ramp is an hour and 15 minutes each way. I hope this helps.