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Old 03-26-2019, 11:38 PM   #1
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F53 motorhome towing 7k realistic?

Hi,

We just purchased a 2019 THOR ACE 27.2 on a Ford F53 chassis, GCWR 23000, GVWR 16000, thus 7k towing capacity.

We plan to tow near the 7k towing capacity. Would you recommend an additional transmission cooler?

We previously owned a 2005 class c e450 motorhome with 5k towing capacity. That transmission overheated when towing 4k pounds. Adding a transmission cooler solved that problem.

I'd appreciate any info whether the 2019 f53 towing specs are realistic, or whether to immediately add a transmission cooler and/or fan.

Thanks, Dave
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Old 03-27-2019, 04:13 AM   #2
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Dave-

First off, welcome to iRV2!

Second, you should add a "signature" to your profile. It contains whatever info you want; most people put info about their coach there, so they don't have to type it into each message. Instructions for adding a signature are here.

Are you planning to tow a trailer, or flat tow? I ask because Thor has been known (in their Class C line, link here) to limit their "8000-pound" hitch to just 500 pounds vertical (tongue) weight, which is way below the 10 to 15 percent of trailer weight typically recommended. What does your owner's manual say concerning tongue weight rating?
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Old 03-27-2019, 04:55 AM   #3
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I'm NOT an expert, but here's my understanding.

Most F53's have a #5000 limit. Actually, the E450 chassis is more likely to have a higher limit at #7500.

The challenge with these limits is that what you tow can subtract out of your CCC, which is usually already marginal.

For instance: I have a 22k pound chassis with a 26k pound max combined. This leaves 4k pounds for towing IF I'm loaded to 22k pounds. I can tow up to 5k pounds, but if I do, I must subtract that from my 22k pound "on board" weight. I can only load my coach up to 21k pounds.

I believe if you find a chassis that will allow towing of 7k pounds, you will be severely limited then on the cargo you can carry. Probably to the point that the option is not viable, even though it is rated that high.
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Old 03-27-2019, 05:14 AM   #4
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We had a 2014 F53 and towed very close to the 26k GCVWR. No issues. The Torqshift is very stout.
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Old 03-27-2019, 05:52 AM   #5
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Congrats on the new rig!
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Old 03-27-2019, 07:11 AM   #6
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If you look at the F53 chassis specs, you’ll see that the 16kGVWR/23kGCWR chassis and the 18k/23k are identical for the same wheelbase except for the Front and Rear springs / spring ratings. Yes, same axles / drive line etc.

So in theory, a 16k/23k chassis loaded appropriate could tow up to 7k dependent on the hitch rating and be within the GVWR and GCWR.

The question then simply becomes, what is the hitch rating? I don’t recall seeing any F53s with anything other than a 5k rated hitch.....

For reference:
The 24/30k and 26/30k are also identical except for the rear spring rating, although the entire chassis structure and set up is different than the lower weight rated chassis.

There are some differences between the 20.5/26 and 22/26. Not only the rear springs that are different but the entire rear axle is different, being 13.5k vs. 15k but with the same drive ratios and brakes. The 22k also has optional 22.5” wheel / tires.

Regards
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Old 03-27-2019, 07:55 AM   #7
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If your towing a trailer probably more important than the tow rating will be the hitch weight. A 7000# trailer is going to have 1000# of hitch weight to tow properly. At the very least you'll want to beef up the hitch and also make sure any frame extension the coach mfr installed is reinforced. Then add air bags and check you're rear axle weight because you're probably going to be over capacity. I've been down this road with an large enclosed trailer with all the dirt toys and in the end I was never happy with it.
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Old 03-28-2019, 01:30 AM   #8
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Thanks everyone for your replies!

This chassis has an 8k pound hitch.

We picked it up today, got it home, and got an unpleasant surprise, a warning label saying the cargo carrying capacity is only 1400 pounds, including passengers, water, and trailer tongue weight. Filling the 50 gallon fresh water tank is 400 lbs, bringing the CCC down to 1000 lbs. The rig allegedly seats and sleeps 8. I guess that adds up if only 2-3 passengers are adults. But that leaves no capacity for gear or 500 lb trailer tongue weight.

I feel like I've been ripped off. This limitation was not disclosed in any literature. We were explicitly told that all weight rating capacities were "wet", i.e. full tanks. They lied.

We specifically upgraded this rig from a class c to increase towing and cargo capacity. Crap! (to be polite)

Now debating my options...

Any advice whether this CCC is absolute, or how much it can be safely stretched? This ACE 27.2 is the smallest in the ACE line, and the larger units list the same weight ratings. The 27.2 must weigh less than the others.

I'm off to the scales tomorrow to do a reality check.

Thanks, Dave
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Old 03-28-2019, 01:46 AM   #9
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I wouldn’t “stretch” anything. Just because a manufacturer puts a 8000lb hitch on something doesn’t mean it’ll tow 8000lbs. If you want to safely tow much more than 5000lbs I would either reevaluate what you really need to tow, or get rid of the Thor and find a decent used diesel.

Also, every RV has that yellow label, and the weights are always dry. No water, people, or propane.
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Old 03-28-2019, 02:44 AM   #10
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Dave, you can beef up the hitch and all the components and pull your trailer fine, But, will you be able to stop it safely? That should be your biggest concern! Rail!
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Old 03-28-2019, 05:07 AM   #11
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Best of luck in figuring out how to make things work. Remember, what you tow doesn't come out of your CCC number if flat towing. Maybe you change your tow vehicle so that you can do so? As long as you don't exceed the 16k on board and 23k combined, you are good. Stretching, to an extent, has likely been designed into the engineering. The potential nightmare is in the event of an accident, insurance companies will hang you to dry if you were over at all, as they should.
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Old 03-28-2019, 06:13 AM   #12
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Quote:
Originally Posted by Db327 View Post
Thanks everyone for your replies!

This chassis has an 8k pound hitch.

We picked it up today, got it home, and got an unpleasant surprise, a warning label saying the cargo carrying capacity is only 1400 pounds, including passengers, water, and trailer tongue weight. Filling the 50 gallon fresh water tank is 400 lbs, bringing the CCC down to 1000 lbs. The rig allegedly seats and sleeps 8. I guess that adds up if only 2-3 passengers are adults. But that leaves no capacity for gear or 500 lb trailer tongue weight.

I feel like I've been ripped off. This limitation was not disclosed in any literature. We were explicitly told that all weight rating capacities were "wet", i.e. full tanks. They lied.

We specifically upgraded this rig from a class c to increase towing and cargo capacity. Crap! (to be polite)

Now debating my options...

Any advice whether this CCC is absolute, or how much it can be safely stretched? This ACE 27.2 is the smallest in the ACE line, and the larger units list the same weight ratings. The 27.2 must weigh less than the others.

I'm off to the scales tomorrow to do a reality check.

Thanks, Dave
What are you going to be towing? If a car with four wheels down, the tongue weight will be minimal. If a car in a dolly, you may be ok depending on the dolly. I lea4ned this season that some tow dollies have miniimal tongue weight as well. If a trailer, you’ve got issues.

You don’t have to carry a full load of water. We have a smaller class A with a slightly larger CCC and only carry about a 1/4 tank. Look at all of the clothes you want to bring and cut it down. Same for food. My BIL left for a six week trip and packed his fridge and cupboards tight. I told him that there will be stores everywhere and he can restock. That doesn’t work if you’re going to middle of nowhere, obviously.

The best thing you can do is load up for a trip, without a trailer, and head to a scale. About $10 and 15 minutes will tell you how you’re doing. Look at the overall weight, axle weights and their ratings and make any adjustments necessary. Then go from there with your trailer/vehicle.
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Old 03-28-2019, 07:07 AM   #13
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Your weight sticker has 1400 pounds in the same place as this 2017 27.2 at Lazydays has 1186 pounds? I assume that's where you're getting your 1400 pound capacity?
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Old 03-28-2019, 07:16 AM   #14
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To the OP: are you flat towing or towing a trailer? Somewhere I've seen a setup for towing trailers that has a hitch extension on it's own set of tires but I can't recall the name of it. Basically it relieves all the hitch weight from the vehicle. Anybody remember the name?
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