We just bought a 2015 Itasca 37f, Ford v10 f53 chassis rated at 28,000 gcwr. Trouble is, the coach came with a frame extension that is smaller than the original nine inch channel frame of the chassis. My trailer is a 28 ft Edge, about 10,000 loaded. Towing this trailer is limited to 115 miles to either t rack i race at, and we don't get out more than three or four times a year. Looking for input on what to do to make sure i don't damage this coach.

Class a or c coach? Most gas coaches are only rated to tow 4000 lbs. Read the manual. Probably going to need a Trailer Toad for that kind of hitch weight. I know you will get people that say they have towed more no problem. The issue is stopping and as you said not damaging the coach.

I am not worried about braking, i travel slow enough (under 60 mph) and won't be over the gcwr by much when loaded. So that brings it down to potential coach damage.
The coach is a 38 ft class A.

I have the same problem, towing is not the problem, but the tongue weight...I am in the process of buying a Trailer Toad. Jok owns the company.

I am getting the 5000SD unit, as I have a 600lb Diesel generator, 20 gal tank, bench, cabinets, tool box, and the tongue weight is about 3000lbs!

I have talked to lots of people at races, and the people that have motor homes, most have the Trailer Toad.

Mark

While the Trailer Toad will take care of the tongue weight you might still want to beef up the back of the frame to keep it from racking with side loads.

I think it would be easier to get everything setup correctly now than to repair damage later.

Definately will before i tow.!

The problem with most any puller coach is built on a medium duty chassis and there is very little support at the rear for towing ANYTHING. They basically have enough material to support the body of the coach on. If it were me I would want to substantially reinforce the rear frame of the coach to tow a racecar trailer myself. There is a lot of overhang that is very lightly supported on the back of a class A puller. A trailer toad will help for sure, but even then I would want the rear frame area reinforced.

This company did my hitch
http://drcraceproducts.com/motorhome.html

The problem is not the chassis in his case. Its the added length that screws up the towing. The F53 chassis is a good chassis to tow with if its not been added on to. You have stay under 32 feet to keep from this happening.

https://www.ford.com/commercial-trucks/stripped-chassis/models/f53-motorhome/

In his case, you will need to brace a ton or use a toad.

Mine is a class A. 2008 Four Winds Hurricane 33H. Ford F53 chassis, with the V10 engine, 33' in length. The F53 chassis's original frame ands about 3 feet short. You can see where the motorhome or chassis company added an extra 3' of frame. The additional frame is the same size as the rest of the frame. I will add a few pics of the bracing for the hitch.

http://drcraceproducts.com/motorhome.html They reinforced and installed my heavier duty hitch. Mine has a GCVR of 26,000 pounds. Motorhome weighs in a little under 16,000 pounds loaded and ready to tow without trailer. I have a 2004 Haulmark Edge 26' , that weighs a little under 10,000 pounds loaded and ready to tow. All together everything weighs a little under 26,000 pound on a certified tractor trailer scale. Front axle, rear axle and trailer axle weights are all within my limits. According to motorhome weigh sticker.

It tows and stops great. Fuel mileage sucks, 5.5 to 6.6 mpg loaded.

Another pic of hitch. I don't have any pics of motorhome and trailer on my computer, and don't know how to get a pic from my phone onto here.

Took motorhome and trailer to Piedmont this last Thanksgiving for their Fall Footbrake Frenzy Race. Almost 1,000 miles round trip. Towed great...

You really need to be careful about loading any Class A with any load and particularly a heavy two axle, box trailer. I never realized how dangerous it could be. Gas engines never make the grade.

Load your motor home to normal gross weight with all your stuff. Run it across a set of truck scales. Read the motor homes Gross Vehicle Weight. It is normally on a tag and/or owners manual.

You'll be shocked that they can get away with it and soon realize why they blow tires. You'll also want to avoid them on the highway. Race cars are way safer.

Most of the heavy duty diesel pusher motor homes with 350- 400 horsepower can do it, but not all. Check the tags before you buy.

The early Monaco's, Beaver's and Country Coaches with 325HP or more can do it.

Loren

Found a pic from Jim Harrington Footbrake race at Cecil county last year..

I checked my trailer tongue weight with my car chassis scales, before I towed with it. When first checked , I had 1300 pounds tongue weight. I moved car back 3 or 4 inches and moved my spare trailer tire and motorhome spare tire, to the back of car trailer, under rear of racecar. Then I had 1110 pounds of trailer tongue weight.

Thanks for the input, guys. I like what i see in the "ladder frame" adition that goes all the way to the axle and maybe beyond. I will feel good with that setup. As far as tongue wieght, i can vary that a lot to almost nothing by moving the car and things around, so that won't be an issue.
I will be traveling from Florida to Minnesota April 1st, so if there is a welding and hitch shop along the way, we could get it done enroute. Recomendations?

The word "racking" was a good reminder that not all loads are forward and backward. Diagonal bracing is the appropriate way to increase stiffness in the lateral directions.

In other words, triangulate!

R.

Call John at http://drcraceproducts.com/motorhome.html Not in your direct route of travel.

Contact the manufacturer.... would be interesting to see what they say. They only two guys I know that towed with a C class, no longer do. Structure damage to the coach prompted a hasty trade in.

As stated above in the diagram, the rear portion of the frame is bolted to the plywood , maybe OSB floor. Are you going to trust a couple of bolts going through maybe 3/4" wood to keep your car and trailer attached?

With these big trailers, you don't need the old standard 10% tongue weight. That puts to much stress on the tow vehicle and hitch. I measure the height of the trucks rear bumper before I connect the trailer. Then load the car near the rear of the trailer so the truck bumper (1 ton dually) only drops 1 - 1.5". It tows beautifully​.

I bought the old style Trailer Toad about five years ago used and love it. It has the small tires on it and I had my first blowout last year. I found high ply tires for 80.00 a pair mounted on Rims So every three years I will buy a new set. Cheap insurance.