I am buying a new trailer Camper 5th wheel. My truck is a 2008 F150 Supercab, 145 wheelbase, 5.4, Towing package, 18 in tires. The new trailer is 7930lbs, I will be pulling in Ohio and occassional tow to Virginia through some hills. Book says 7900 as max, am I going to cause any severe damage to engine or transmission?

 

No, but you'll likely be way over your trucks GVWR

 

See my comment in your other thread.

 

Probably not, but it is possible when towing in excess of your tow ratings.

It sounds like a salesman is/was more interested in his commission than selling a trailer to match your tow rig.

 

No the salesman told me that it put me right at the max. The GCWR is 13500lbs and I look at that as having 5500lbs of additional GCWR but no additional trailer weight. I am planning to change my axle ratio to 3.37. The only thing different from the specs from my book with a F150 that can haul a max weight of 8900 is the axle ratio. I dont think I will have difficulties towing but did not want to be unsafe in stopping.

 

U will need a brake controller if u don't have one integrated. 3.73 gears you mean?

 

Stopping is not a problem. Accelerating isn't even a problem. It's the handing of up to 1500 pounds more weight on your trucks' suspension that is is designed for that is a problem.

An RV with dry weight of 7900 pounds will be more like 9000 pounds ready to travel. It will come weighing 2-500 pounds more than dry weight with options including what almost every manufacturer lists as mandatory options. Mine was about 300 pounds more according to the yellow sticker than the web site/brochure dry weight. Then everyone adds food, cooking stuff, clothes, towels, camping chairs, tent, grill, etc.

Now a 9000 pounds 5th wheel RV will have at least 1350 pounds of pin weight and up to 2250 pounds when properly loaded for good handling. Add another 200 pounds for the hitch in the bed, and however much you and your family weighs. Anything else in the bed or cab? You need at least that much payload. Seems you need at least 2000 pounds just to start thinking about a 5th wheel RV.

Find the yellow sticker on your driver's door that looks like this:


How much does your truck say? They are all unique based on trim level and optional equipment.

Oh, and then there is the axle and tire load ratings that can quickly be exceeded.

If you really go through with it, just go to 4.10 axle ratio if you have stock sized tires.

 

Thanks everyone, I decided to look smaller. Although I see many F150s towing these I decided to go rear tow and am looking at a trailer that is 6500lbs vs 7900.
Thanks to all who gave me guidance.

 

Much better choice for a half ton pickup