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Anyone pulling a Montana 3120 with a SRW short bed?

Slick_Rick
Explorer
Explorer
We're considering a Montana 3120 and the numbers say it'll work with the truck: 2015 F350 PSD SRW short bed with 3500 lbs payload, 11500 lbs gvwr. How much tongue weight, 20%? Anyone doing it or is it made for a dually? This would be our first 5er.
Thanks
2015 F350 Lariat CC PSD 4x4 SRW
2015 Lance 865 Truck Camper
22 REPLIES 22

Cummins12V98
Explorer III
Explorer III
"The TPMS probably won't like running the tires at 30 psi. "

My RAM DRW TPMS does not care one bit what air pressure I run. Even if it were a 3500 SRW it would not care either. Only time you would get a ding and light is on a 2500.

YES he is correct there are many that run what their side wall says. What's more funny is when they wonder why their ride is so BAD.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

plumber802
Explorer
Explorer
rhagfo wrote:
Cummins12V98 wrote:
Michelle.S wrote:
Everyone always says Duallys are no good in snow. When I was still working, my Dually was my "Go To Vehicle" during snow storms. Now I did have approx 700 or 800 pounds of sand bags in the box all behind the axles. I traveled 50 miles one way to work in Rochester, NY with Lake Effect from Lake Ontario. If roads were real bad, slow down and put it into 4 wheel high and motor on passing all the little 4x4 SUVs in the medium.


My friend in NW WA has a 13 RAM DRW he uses for his Landscaping Business. I asked him how his truck did in the snow this winter.

"It handled awesome with 30psi in the rear tires doing my snow melt and sidewalk shoveling maintenance."


It is those that run their DRW tires at 80 psi, because that is what is on the sidewall!


The TPMS probably won't like running the tires at 30 psi.
Andy and Linda, St-Albans, Vermont.
Retired Union Pipe Fitter/Plumber. Former LEO 1994-2004.

Slick_Rick
Explorer
Explorer
Thanks for the great advice guys. We love the Montana layout but it's a bit much for my truck. We are starting to look smaller, maybe a Jayco Eagle HT 27RS. I wanna stay with the SRW because we'll always want to campout on the OSV at Assateague Island and I prefer my truck than a DRW on the beach. My goal is to keep the truck camper for beach use and have the 5er for non coastal expeditions. I'm investigating the Anderson Ultimate 5th wheel hitch which will keep the bed clear, with minimal work, for the TC. So many options, thankfully retirement is a couple years away yet, lol.
Thanks again
Peace
2015 F350 Lariat CC PSD 4x4 SRW
2015 Lance 865 Truck Camper

Cummins12V98
Explorer III
Explorer III
ACZL wrote:
I know this is getting off topic for OP, but I have 1400# of tube sand over axle, 60 psi in stock tires. Guess I could lower them more, but now that winter is winding down, no need to.


Even with 30-35 psi in the rears you would still have more carrying capacity than you have with the sand in the bed. I run 30 rears on my RAM DRW when not towing year round.

Take a look at your specific tire size and load range weight/inflation chart. I used to run less than 60 with 4,500# pin weight.
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

ACZL
Explorer
Explorer
I know this is getting off topic for OP, but I have 1400# of tube sand over axle, 60 psi in stock tires. Guess I could lower them more, but now that winter is winding down, no need to.
2017 F350 DRW XLT, CC, 4x4, 6.7
2018 Big Country 3560 SS
"The best part of RVing and Snowmobiling is spending time with family and friends"
"Catin' in the Winter"

Cummins12V98
Explorer III
Explorer III
rhagfo wrote:
Cummins12V98 wrote:
Michelle.S wrote:
Everyone always says Duallys are no good in snow. When I was still working, my Dually was my "Go To Vehicle" during snow storms. Now I did have approx 700 or 800 pounds of sand bags in the box all behind the axles. I traveled 50 miles one way to work in Rochester, NY with Lake Effect from Lake Ontario. If roads were real bad, slow down and put it into 4 wheel high and motor on passing all the little 4x4 SUVs in the medium.


My friend in NW WA has a 13 RAM DRW he uses for his Landscaping Business. I asked him how his truck did in the snow this winter.

"It handled awesome with 30psi in the rear tires doing my snow melt and sidewalk shoveling maintenance."


It is those that run their DRW tires at 80 psi, because that is what is on the sidewall!


ZACTLY!!!
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

rhagfo
Explorer III
Explorer III
Cummins12V98 wrote:
Michelle.S wrote:
Everyone always says Duallys are no good in snow. When I was still working, my Dually was my "Go To Vehicle" during snow storms. Now I did have approx 700 or 800 pounds of sand bags in the box all behind the axles. I traveled 50 miles one way to work in Rochester, NY with Lake Effect from Lake Ontario. If roads were real bad, slow down and put it into 4 wheel high and motor on passing all the little 4x4 SUVs in the medium.


My friend in NW WA has a 13 RAM DRW he uses for his Landscaping Business. I asked him how his truck did in the snow this winter.

"It handled awesome with 30psi in the rear tires doing my snow melt and sidewalk shoveling maintenance."


It is those that run their DRW tires at 80 psi, because that is what is on the sidewall!
Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"

Cummins12V98
Explorer III
Explorer III
Michelle.S wrote:
Everyone always says Duallys are no good in snow. When I was still working, my Dually was my "Go To Vehicle" during snow storms. Now I did have approx 700 or 800 pounds of sand bags in the box all behind the axles. I traveled 50 miles one way to work in Rochester, NY with Lake Effect from Lake Ontario. If roads were real bad, slow down and put it into 4 wheel high and motor on passing all the little 4x4 SUVs in the medium.


My friend in NW WA has a 13 RAM DRW he uses for his Landscaping Business. I asked him how his truck did in the snow this winter.

"It handled awesome with 30psi in the rear tires doing my snow melt and sidewalk shoveling maintenance."
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

topjimmy
Explorer
Explorer
you must be the only one who thinks they are fine in the snow[ all 3 of mine have sucked and they are even worse when taken out on the beach the hard sidewall tires do not help either .............quote=Michelle.S]Everyone always says Duallys are no good in snow. When I was still working, my Dually was my "Go To Vehicle" during snow storms. Now I did have approx 700 or 800 pounds of sand bags in the box all behind the axles. I traveled 50 miles one way to work in Rochester, NY with Lake Effect from Lake Ontario. If roads were real bad, slow down and put it into 4 wheel high and motor on passing all the little 4x4 SUVs in the medium.
2015 Montana 3735MK Legacy,2007 3500HD GMC Dually LBZ Duramax/Allison ,Pacbrake,Firestone Airbags Bullydog Tuner

Michelle_S
Explorer III
Explorer III
Everyone always says Duallys are no good in snow. When I was still working, my Dually was my "Go To Vehicle" during snow storms. Now I did have approx 700 or 800 pounds of sand bags in the box all behind the axles. I traveled 50 miles one way to work in Rochester, NY with Lake Effect from Lake Ontario. If roads were real bad, slow down and put it into 4 wheel high and motor on passing all the little 4x4 SUVs in the medium.
2018 Chevy 3500HD High Country Crew Cab DRW, D/A, 2016 Redwood 39MB, Dual AC, Fireplace, Sleep #Bed, Auto Sat Dish, Stack Washer/Dryer, Auto Level Sys, Disk Brakes, Onan Gen, 17.5" "H" tires, MORryde Pin & IS, Comfort Ride, Dual Awnings, Full Body Paint

ACZL
Explorer
Explorer
MFL wrote:
ACZL wrote:
IMO it's a no go. Truck should weigh in around 8600# +/-. Going by replies from others, the RV's dry weight is 14k and max of 16k. You will be at max capacity all the way around if not over on some. I had same truck, but when we upgraded RV's we were in same situation as you. Yes truck towed it fine and I loved the truck, but didn't like being right at max on everything. Dry weight of new coach was 14k and max was 16k. Fully loaded, pin was 3700, RV 16,000, total weight on truck 12,300, combo 24,600. Ended up getting a DRW 350 and night/day diff in towing. Yes the DRW sux in the snow, but for towing north of 15k max RV weight, you are in DRW territory.


Dry wt is just 12K with a large CCC, loaded GW likely 14-14.5K, kind of reason OP said the numbers fit.

Jerry


You are indeed correct. If however the dry weight is more (say closer to 14k) and figure at least 2,000# of "stuff" then that changes things I figure.Really have to look at dry & max weight of RV and kinda figure the mfr dry weights are not always 100% correct (same as mfr advertised pin weights). Like I mentioned in my 1st post, really thought our '15 SRW not only would be perhaps are last truck and able to tow pretty much anything, we simply ran out of numbers when we got the new RV. I wasn't too concerned about yanking it around here in NY or close by states, but heading to FL in summer and being over on tires just planted a gut feeling of not being comfy. So that's how we ended up w/ the DRW. Don't get me wrong, the DRW is awesome for towing the RV, but it does kinda stink for everyday running around and surely stinks in the winter. That's where our old SRW shined.....especially towing our 4 place V-nose close to 30' sled trailer. DRW, like a farm tractor give you a wider footprint and spreads the weight out on 4 tires rather than 2.
2017 F350 DRW XLT, CC, 4x4, 6.7
2018 Big Country 3560 SS
"The best part of RVing and Snowmobiling is spending time with family and friends"
"Catin' in the Winter"

work2much
Explorer
Explorer
Cummins12V98 wrote:
" If I recall the GVWR was 16,000. That makes for a 3200 pound pin."

So based on your formula I should have 4,200# pin since my GVWR is 21k. But why is my pin 6,000?

My RV actually weighs 24k and my pin percentage is 25%. So just because a number says XYZ that doesn't make it so!!!


Good point. Pin can be higher than 20% It can also depend on tanks. Our 90 gallon fresh tank is behind the axles so a full tank drops pin and empty fresh and full gray and blacks means a big jump in pin. Another reason why it's better to have more truck than less.
2022 Ram 3500 Laramie CTD DRW Crew 4x4 Aisin 4:10 Air ride.

2020 Grand Design Solitude 2930RL 2520 watts solar. 600ah lithium. Magnum 4000 watt inverter.

jaycocamprs
Explorer
Explorer
I wouldn't do it. Our Mountaineer is 10K dry, loaded just under 12K. The 05 DRW we had went 11K loaded. Now that was 2800# pin. The rest was stuff in truck, firewood, tools, us & the dog. I'm just not going to watch every pound of stuff I haul around. So that's why when bought the 18 truck it was DRW also.
2018 Silverado 3500 DRW
2011 Montana Mountaineer 285RLD

Cummins12V98
Explorer III
Explorer III
" If I recall the GVWR was 16,000. That makes for a 3200 pound pin."

So based on your formula I should have 4,200# pin since my GVWR is 21k. But why is my pin 6,000?

My RV actually weighs 24k and my pin percentage is 25%. So just because a number says XYZ that doesn't make it so!!!
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD