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Old 11-30-2020, 05:35 AM   #1
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Tweaking numbers

TV is a 2020 Ram 1500 Big Horn Crew, 5.7 Hemi with a 3.21. Yellow payload sticker in the door is 1620#. Husky centerline WDH, Airlift HD air bags added, factory brake controller

TT is a 2021 Rockwood Mini lite 2204s. 24’. 4800# dry. Anticipating no more than 5700# when loaded (perhaps the biggest unknown but that’s the goal!) Plus I’d like to adjust the tongue weight to about 13% of gross trailer weight, so about 750# (5700*.13)

Just the wife and I (275# total,.....over 60 and actually skinny ). Figure no more than 100-150# we might load in the truck. Even that is negotiable.

So I have a Softopper and nerf bars, 70# for both. We have zero need for the rear crew cab seats while RVing and they do pop out pretty easy. Why couldn’t I remove them to regain some added payload capacity? No worse than a single cab truck...Might not be necessary but I thought it could be an option. Hate carrying around stuff I don’t need.

We have CAT scales down the road but I like the idea of knowing where I’m at before hand. Instead of just going with a tongue scale I thought about getting some cattle scale load cells to make an “axle” scale. I used to have Longacre racing scales in my Autocross days and really loved them. Maybe a bit of geek overkill but it sounds like a fun project. Anyone ever try something like this?

(I’ve already towed my 5800#, 24’ center console Sea Hunt with zero mods or issues but I know boats and TT’s are very different beasts) Thanks!
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Old 11-30-2020, 07:06 AM   #2
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Enjoy your rv, you are over thinking this.
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Old 11-30-2020, 07:15 AM   #3
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Agree with Nevada - leave the seats in and you will be fine.

I like those Rockwood trailers. They seem to be solidify built to me.

Enjoy
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Old 11-30-2020, 07:53 AM   #4
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Enjoy your rv, you are over thinking this.
Its what we techno geeks do. Probably going even more crazy with some planned minor solar upgrades........
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Old 11-30-2020, 09:27 AM   #5
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I see the biggest issue as the 3.21 rear axle ratio. You will be spending time in lower gears with the engine revving to keep you rolling.

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Old 11-30-2020, 02:44 PM   #6
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I see the biggest issue as the 3.21 rear axle ratio. You will be spending time in lower gears with the engine revving to keep you rolling.

Ken
Thought I read of slew of 5th gen Ram forum threads on 3.21 versus 3.92 and didn’t read anything about excessive revving in lower gears, especially at 5700#. Other than slightly different gear spacing and perhaps being gentle off the line, I figure I’ll be fine in tow mode. We’ll see. Certainly no issue going up grades with the boat at the same weight.
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Old 12-02-2020, 11:51 AM   #7
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Enjoy your rv, you are over thinking this.
Nice to see someone actually doing their due diligence instead of just reading the general max tow capacity in the sales brochure and shopping for a trailer dry weight within 100 lbs of that and totally ignoring carrying capacity, gross weights, hitch weights and silly stuff like that. Hat's off to you OP for doing some homework.
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Old 12-02-2020, 01:43 PM   #8
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I read the due diligence that he posted which is why i responded the way i did. Whats your story ?
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Old 12-02-2020, 02:01 PM   #9
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The CAT scale will probably give you axle weights along with the total weight for $15. Some will even weight whole rig and weigh the tow vehicle only for no additional charge.

If you like to build things, go for the DIY affair.
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Old 12-02-2020, 02:17 PM   #10
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As many suggested, if you wan to know the exact number, get the rig CATed. Two steps:
1. TV+TT w/o WDH engaged
2. TV alone

Use combined TV axle weights from 1 minus combined TV axle weights from 2=tongue weight before WDH engagement.
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Old 12-03-2020, 06:19 AM   #11
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The CAT scale will probably give you axle weights along with the total weight for $15. Some will even weight whole rig and weigh the tow vehicle only for no additional charge.

If you like to build things, go for the DIY affair.
Yeah, Ive been to the local CAT scale before with the boat and gotten TV only and full rig weight. The load cell axle scale would be more of a not required but fun to try project.

Ill assume Im not too far off the mark since no one has shot me down too hard, minus the 3.21 concern. Fair enough...
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