Picking up 10000 pound fifth with brand new 2500 6.4 hemi...considerations?

[g stedronsky]

Hello.

Truck delivered last week. 6.4 Hemi with 4:10 axle. Literally under 100 miles right now.

Picking up new fifth wheel Friday. 10000 pounds.

Any concerns or considerations with towing something so big with brand new motor?

Thanks

GS

 

[AFMoulton]

Get over 1000 miles on it before towing, also have fun!


2018 2500 6.4 4x4 4.10 Amsoil SS 0w-40, Softopper
Black Rhino Armory 18x9 +12mm
Cooper Stt MAXX LT295/70R18

2016 Durango 5.7 AWD 3.07 Amsoil SS 5W-30
1996 Nissan Altima 2.4 Amsoil SS 5W-30

 

[Nickx86]

break her in for a 1000 miles and the first 500 towing take it sort of easy. After that it’s fair game. Is your trailer 10k empty of 10k gcw?

 

[Cardhu]

"I still recommend the following procedure for breaking in a new gear set: After driving the first 15 to 20 miles, stop and let the differential cool before proceeding. Keep the vehicle at speeds below 60 mph for the first 100 miles. I also recommend putting at least 500 miles on the new gear set before heavy use or towing. During the first 45 miles of towing, it helps to go about 15 miles at a time before stopping to let the differential cool for 15 minutes before continuing. This is necessary because not all of the gear tooth is making contact until it is heavily loaded. When towing, the teeth flex to contact completely, and cause the previously unloaded portion of the teeth to touch and work harden. It is very easy to damage the ring & pinion by overloading before the teeth are broken-in. If you take it easy on a new ring & pinion and keep it full of high quality oil, it will last a lot longer."

https://www.randysworldwide.com/resource-center/new-gear-break-in/

When your towing its making a new wear pattern due to deflection of the gear set when under load. If your not far from your dealer, straight to home won't be an issue. otherwise take a break on the way back and heat cycle your gears. Don't be the guy that hooks on and drags it down the highway for an hour as soon as you get it.

 

[GsRAM]

That's a no go according to the owners manual if I remember correctly. I believe you need 500 miles on it before towing. If you don't have that on it by Friday I'd not tow the trailer with your truck. The brake in period is there for a reason so should you opt to disregard it and wind up with diff issues later on that's on you. Good luck

 

[Hd74ica]

That's a no go according to the owners manual if I remember correctly. I believe you need 500 miles on it before towing. If you don't have that on it by Friday I'd not tow the trailer with your truck. The brake in period is there for a reason so should you opt to disregard it and wind up with diff issues later on that's on you. Good luck

Also states for the first 500 miles of towing not to exceed 50 miles per hour. Maybe I'm foolish but feel the guidance in the owner's manual should be followed, it's there for a reason. Just my two cents worth

 

[Black W900]

I always just run'em the way I am going to use them from day 1.
I have "broken in" more engines and gear sets than I care to think about and have "NEVER" followed the suggestions in the owners manual.
I know that Cummins recommends putting a brand new motor under load and pulling as hard as possible for the first 500 miles on heavy duty engines.
I don't know what they recommend for the baby Cummins in the RAM 2500/3500's, but I would just run it...Hard.

 

[GsRAM]

Also states for the first 500 miles of towing not to exceed 50 miles per hour. Maybe I'm foolish but feel the guidance in the owner's manual should be followed, it's there for a reason. Just my two cents worth

Correct. Agreed_

 

[Blew]

That load sounds close to excessive for your rig. However I am pulling 13K + with my 07 Dodge Ram 2500 with 6.7 Cummins and other than needing to accelerate up some inclines to not hear the pinions sing at 90+k I am happy with the setup. I too am pulling a bit more than I should --on paper. Near 30 mpg unloaded and 14.7 towing the 13k trailer--after some mods to intake/exhaust/tuner

 

[mtofell]

That load sounds close to excessive for your rig. However I am pulling 13K + with my 07 Dodge Ram 2500 with 6.7 Cummins and other than needing to accelerate up some inclines to not hear the pinions sing at 90+k I am happy with the setup. I too am pulling a bit more than I should --on paper. Near 30 mpg unloaded and 14.7 towing the 13k trailer--after some mods to intake/exhaust/tuner

Not excessive at all. His truck should have +/- 3000# of payload and max towing of 15.5K with the 4.10 gears. Besides, I don't think he was asking if we thought it was excessive. He was asking about break-in. I'm not trying to be a **** but EVERY thread in here turns into a ******* match about weight and towing capacity.

OP, I say follow the manual as others have provided the info. The 1000 miles is kind of a drag. I think the manual also says to vary speeds as much as possible during that time and rev the engine up plenty high after a while to get everything set right. Some of this may be from the manual and some might be just from what I remember when asking a similar question when I got my truck.

 

[AFMoulton]

Not excessive at all. His truck should have +/- 3000# of payload and max towing of 15.5K with the 4.10 gears. Besides, I don't think he was asking if we thought it was excessive. He was asking about break-in. I'm not trying to be a **** but EVERY thread in here turns into a ******* match about weight and towing capacity.

Well said.



2018 2500 6.4 4x4 4.10 Amsoil SS 0w-40, Softopper
Black Rhino Armory 18x9 +12mm
Cooper Stt MAXX LT295/70R18

2016 Durango 5.7 AWD 3.07 Amsoil SS 5W-30
1996 Nissan Altima 2.4 Amsoil SS 5W-30

 

[GsRAM]

Not excessive at all. His truck should have +/- 3000# of payload and max towing of 15.5K with the 4.10 gears. Besides, I don't think he was asking if we thought it was excessive. He was asking about break-in. I'm not trying to be a **** but EVERY thread in here turns into a ******* match about weight and towing capacity.

OP, I say follow the manual as others have provided the info. The 1000 miles is kind of a drag. I think the manual also says to vary speeds as much as possible during that time and rev the engine up plenty high after a while to get everything set right. Some of this may be from the manual and some might be just from what I remember when asking a similar question when I got my truck.

The brake in period is 500 miles per the owners manual before towing anything. Then the first 500 towing miles your not supposed to exceed a certain speed I believe. 50 mph rings a bell but can't say for certain.

I would follow it at least as far as the first 500 miles no towing is concerned anyway. I've heard reports on other forums of diff failures by folks who disregarded this procedure. I'm up over 7k on my truck with no diff issues and I followed the procedure. Again only my .02

 

[arthur dwyer]

easy first 500 and then go for it!

 

[SK2500]

I have a 2018 2500 6.4 and tow a 42’ 5er gvwr 15000. No problems at all. Oh and 3.73’s
Just don’t beat on them. HD Rams are very under rated with their tow ratings imo.


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[Hd74ica]

I have a 2018 2500 6.4 and tow a 42’ 5er gvwr 15000. No problems at all. Oh and 3.73’s
Just don’t beat on them. HD Rams are very under rated with their tow ratings imo.


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Just curious how your MPG is towing your 5er?

 

[Firewall]

So the good news is I now have a new Ram 3500HD w/ the 6.4. The bad news is I have to wait till spring to tow with it..... but at least I'll have the 500 miles done!

 

[SK2500]

Just curious how your MPG is towing your 5er?

Roughly between 7-9. Now I’ve only towed around Pa so far. So lots of hills. Lol


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[ronheater70]

I have a 2018 2500 6.4 and tow a 42’ 5er gvwr 15000. No problems at all. Oh and 3.73’s
Just don’t beat on them. HD Rams are very under rated with their tow ratings imo.


Sent from my iPhone using Tapatalk

Wow, I dont know how you do it. Im originally from WV and camping in WV was what made me decide to trade my 6.4 in on a diesel. I would have kept it if I spent more time on lesser hills and I was only pulling about 10K +/- with the 6.4 and 3:73. I cant begin to imagine pulling near 15K on the regular. I was screaming in second gear in places on the interstate with just the 10K behind it.

 

[tourrider]

So the good news is I now have a new Ram 3500HD w/ the 6.4. The bad news is I have to wait till spring to tow with it..... but at least I'll have the 500 miles done!

Nice. I must have missed your pictures

Just picked this up on Monday.

 

[tjfdesmo]

Wow, I dont know how you do it. Im originally from WV and camping in WV was what made me decide to trade my 6.4 in on a diesel. I would have kept it if I spent more time on lesser hills and I was only pulling about 10K +/- with the 6.4 and 3:73. I cant begin to imagine pulling near 15K on the regular. I was screaming in second gear in places on the interstate with just the 10K behind it.

I estimate my toyhauler to be 15K loaded, and my 6.4 does OK on the flats, but not as well on grades. Averaging 7.5-8.5 mpg. Range really sucks. I have not done any super hard pulls, like passes in CO, but anticipate mpg in the sixes. I will be going back to a Cummins as soon as I can swing it. Until then, it'll be screaming 5K up the hills...