I assume my math is correct

docque

Senior Member
Joined
Apr 14, 2022
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633
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.
 
The "good" payload numbers come with that extra set of back tires and big curvy fenders. Single rear tire "HD" trucks seem to have high 2k# to low 3k# payload numbers (my f250 has 2828#)
 
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.
Not missing anything there. If you do go with a F350 SRW, do not get one with the 4x4 (or FX4) package, for wheel drive removes about 600 lbs from your potential CCC. Also, go with a super cab or a single cab if you aren't needing the cab space. Then, look at getting one with the XL package.

If you want a comfortable truck that'll safely tow your 5ver, seriously look into a DRW. I would recommend the F450 for us tighter turning radius.

I have a F350 with the Lariat package and the FX4 package and my ccc is 3,273 lbs. I am very close to my CCC and I know it. The next truck will be a F450 DRW.
 
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.

That sounds about right. My previous truck was a 350 SRW and had a max payload of #3400 . Also the more options you load on it the less payload you have available. Mine was an XLT.

In my opinion, #900 left over isn't too bad, especially if the truck is a long bed and you don't have a heavy auto-slider. The CAT scale revealed that our Solitude was pushing my SRW truck to the absolute max, hence the dually we have now. By the time you add people, some gear, and a reasonable 5er hitch there would be some margin with the 303 and a 3300# payload truck.

Good on you for considering this, there are a lot of people towing way over capacity. Fine for them, I don't want to.

Brian
 
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.

I have the 303RLS and pull it with a GMC Sierra 3500 4x4 AT4 longbed crew cab and love it. My advertised payload is 3836 with single rear wheels.
 
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.

Our new 2023 F250 4x4 SB SRW 7.3 has a payload of 3545 which is on the door sticker. We also have the camper pkg with the helper springs. Would think that would be plenty for a Reflection 303 or 373RLS. But if you wanna be "extremely" safe.... could go with a Peterbilt. ;)
 
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Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.

Diesels are much heavier than gas and have lower payload as a result. That same F350 with a 7.3L would probably have around 4000 lbs CCC.

My 2500HD Chevy gasser has 3480 lbs CCC as another datapoint.
 
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.
We tow a 340 RDS (similar size weight of 337) with a Ram 3500, CCSB 4x4, 6.4 gas and 4.10 rear with a 4006 lbs payload and 17K tow capacity. The trailer is gross weight of 13995 lbs but we are typically around 12k lbs. Truck is great on the east coast and I never wish it had more power but I wouldn't want to run back and forth over the Rockys. Those trailers wouldn't push me to a dually but if you want a diesel you may need to go that way. I would suggest you look at the forums to see what the Ford diesel owners may be having problems with. I know the ram Cummins are plagued with issues and more recalls than I've ever seen. The Ford 550s we have at work have had issues and recalls as well. I personally wouldn't have a diesel until the manufacturers figure out the emissions unless I had to have one such as high weight or commercial use.
Good luck with your decision and let us know what you decide.
 
I forget what year it started, but F350 SRW now has a GVWR of 12400 which will give higher payloads. Gas SRW long bed gives the highest payload until you get into DRW trucks. I don't think you need a DRW for a 303, but if you got one, you'll have no regrets. Plenty of debate on gas vs diesel, depends where you're towing (mountain areas and high elevation, diesels are a great choice). We had a 2018 F350 Lariat, 3331lbs for payload, my 2016 F350 DRW was a little over 5300lbs, my F450 is 5005lbs.
 
I have the 303RLS and pull it with a GMC Sierra 3500 4x4 AT4 longbed crew cab and love it. My advertised payload is 3836 with single rear wheels.
Similar to my SRW Dodge 3500 4x4. Payload is 3800 something. I think 2400 is a bit high for a pin weight, but better to overestimate. Factory says 1800 dry so I think 2200 would be closer to actual.
 
Wife and I decided to go full time. It is a few years off due to the need to sell the house and for some reason, burning it down is frowned upon.

Our decision is a Reflection 303RLS (Maybe 337RLS but size is an issue for her).

So, here is the math. I know to get the proper pin weight actually weighing it is best but we don't had the RV yet. The math is to 20% of GVWR from what I gather. The 303RLS GVWR is 12000 lbs so pin weight is 2400lbs.

We have been walking around and bothering other RVers at the campgrounds to open their doors so I can look at stickers. I saw an F350 about what I was looking at. 4x4, towing package, diesel, 8ft bed. The damn thing has only 3300lbs CCC. Too me that seems way to little for what I want to do. I mean that is only 900lbs left.

Then again I looked at what he was pulling and shook my head. That thing was 40ft long.

What am I missing here? F350s are know for their ability to tow heavy loads.

I've been towing a heavier version of the 303RLS with an F350 SRW 7.3L gasser for 3 summers now. 2 of those summers were in the Rockies with those pesky 7% to 9% grades... Never have we felt unsafe towing. Our mpg is a consistent 8.5 to 9.

My payload is 4000lbs and we certainly have room to spare when fully loaded.

If I was towing 14K lbs or more, I would have bought a diesel.

Sadly, we will be selling both our rig and truck soon due to a change in family health issues.
 
Similar to my SRW Dodge 3500 4x4. Payload is 3800 something. I think 2400 is a bit high for a pin weight, but better to overestimate. Factory says 1800 dry so I think 2200 would be closer to actual.

Yeah I do not have exact weights on what we are towing but I know my front compartment and basement pass through compartments are full. I built a huge slide out tray in the pass through and it holds our Pit Boss Smoker and a Blackstone Griddle both of which are relatively heavy. Then I have some tools and other items in there like cords and such which aren't light. In the front, I have a lithium battery bank and a sizeable electrical control system mounted on the front wall. I would guess mine is at least 2200 if not heavier.
 
That sounds about right. My previous truck was a 350 SRW and had a max payload of #3400 . Also the more options you load on it the less payload you have available. Mine was an XLT.

In my opinion, #900 left over isn't too bad, especially if the truck is a long bed and you don't have a heavy auto-slider. The CAT scale revealed that our Solitude was pushing my SRW truck to the absolute max, hence the dually we have now. By the time you add people, some gear, and a reasonable 5er hitch there would be some margin with the 303 and a 3300# payload truck.

Good on you for considering this, there are a lot of people towing way over capacity. Fine for them, I don't want to.

Brian

Believe me, I am taking my time and making sure I do it right. The more I look, the more I see people pulling things they should not. Like the guys that lift their 4x4 and think it has the same towing capacity without changing gears.
 
Similar to my SRW Dodge 3500 4x4. Payload is 3800 something. I think 2400 is a bit high for a pin weight, but better to overestimate. Factory says 1800 dry so I think 2200 would be closer to actual.

Well, I got with what the max would be. I know it may never get to the 12000lbs with 2800lbs pin but as I did with my F150, I built the truck to be WAY over what the trailer weights.
 
Yeah I do not have exact weights on what we are towing but I know my front compartment and basement pass through compartments are full. I built a huge slide out tray in the pass through and it holds our Pit Boss Smoker and a Blackstone Griddle both of which are relatively heavy. Then I have some tools and other items in there like cords and such which aren't light. In the front, I have a lithium battery bank and a sizeable electrical control system mounted on the front wall. I would guess mine is at least 2200 if not heavier.
Sounds like a nice setup. And ya, you can definitely load the 303 to a 2400# tongue weight...lol

Hmmmmm....a pit boss smoker and a blackstone........I gotta get a site near you. You supply the food I'll bring beverages.
 
Every few months this topic come up.
You can read this thread and have lots of laughs, and learn a few things as well.

https://www.mygrandrv.com/forum/showthread.php/48734-My-CAT-Scale-Results

I have a 303RLS. Here is my post from the above thread.

Some quick fact regarding a Ram 2500, 4x4, Quad Cab, Long Bed, Diesel VS the equivalent Ram 3500 SRW:
- same front end components, axle shafts,, axle tubes, brakes rotors, calipers, hubs, bearings, steering linkages.
- same tires/rim packages available on both vehicles
- same engine, transmission, transfer case, drive shafts (front/rear)
- same rear carrier housing, ring/pinion options, carriers, carrier bearings
- same rear axle shafts, rear hubs, bearings, brake rotors, calipers

Differences:
- frame supports for coil springs vs leaf springs. Structurally the same frame design.
- axle tubes: supports for coil springs vs leaf springs
- badging: 2500 vs 3500
- yellow sticker in door: GVWR 10,000lbs vs 12,000lbs (An additional 2000lbs of payload due to the springs)

The real reason the 2500 in rated at 10,000lbs is based on Combined Federal Regulation (CFR) 49.
This states that vehicle under 10,001 lbs are not required to register as commercial vehicles, unless the combined GVWR of the vehicle and towed vehicle (if there is one) exceeds 10,000lbs.
So land landscapers “conducting commerce” in an F150 (GVWR 7500lbs) towing a single axle trailer (GVWR of 5,000lbs) are exceeding the 10,000lb requirement and should be registered as commercial vehicles. Most of them are not.

You need to do what is safe based on the vehicles design. An F150 hauling my camper would be unsafe. The frame, axles, brakes, etc. are not up to the task. The load would most likely damage the vehicle and create an unsafe condition.

I exceed my 10,000lb GVWR by about 1200lbs and have absolutely no issue with it. I believe I have 800lbs to spare. I treat my truck as a 3500 SRW with a 12,000lb GVWR. When I lived in WA State the vehicle was even registered at 12,000lbs. Just pay the extra fees.

Hope all this helps.
 
I'd go with the single rear wheel 4x4. 900 pounds is plenty of spare room. It's that one occasion that you will need the 4x4. Happened to me. Coming out of the desert, nobody for miles and miles, going up a small hill on a graded dirt road after a rain and started spinning and stopped. Couldn't go any further. Got out, locked the front hubs, put it in 4x4 and right up the hill we went.
 
Check out the allpar forum where the engineers admit, they pick the payload numbers based on comfort convenience, gas mileage, etc. not ability
 
You are looking at a light trailer. I will not repeat what everyone else has just posted, but will give you my real numbers. I have a 2020 Solitude 2930 (basically yhe same floorplan and size as a 337RL but heavier). I have a 2023 F350 short bed crew 4x4 with the 7.3. My rig weighs 11100 on the truck axles, 6900 on the rear truck axle and a total actual weight of 21000 fully loaded. We are 400 lbs under gross on the truck, 300 lbs under the rear axle gross and 600 lbs under the gross rating of the rear tires. An F350 SRW will give you plenty of truck
 

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