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Old 02-14-2017, 08:26 AM   #15
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Originally Posted by Patriot65 View Post
So Please tell me about the RAM 3500 Turbo Diesel exhaust brake please. (And thank you for this comment.)

I know of engine brakes on bigger Class A's and such, I have this on my 3500? Is it a switch?

All Ram Cummins equipped trucks since 2007.5 have exhaust brakes as standard equipment. This exhaust brake was improved in the 2013+ trucks. It has two modes now... Full and Auto.

In full mode, as soon as you let off the throttle the turbo will close down to restrict exhaust and slow the vehicle.

In auto mode the VGT of the turbo will vary how much it closes off the exhaust to hold a set speed, such as on the interstate in the mountains. Both modes work great.

The button to activate the exhaust brake is below the climate control next to the tow/haul switch. You will need tow /haul active to use the exhaust brake so the Trans will stay locked.
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Old 02-14-2017, 08:29 AM   #16
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Originally Posted by Patriot65 View Post
So Please tell me about the RAM 3500 Turbo Diesel exhaust brake please. (And thank you for this comment.)

I know of engine brakes on bigger Class A's and such, I have this on my 3500? Is it a switch?

Yes you should have it. On my 2014 the button is under the display screen next to the Tow/Haul button. The exhaust brake works great for slowing the rig down. I never tow without it
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Old 02-14-2017, 08:33 AM   #17
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From my reading, the 4.10 gear has higher wear and lower mileage compared to the 3.73. The highway version 3.42 has a lower tow rating and I will clearly avoid it, but my understanding is that the tow limits are in general, accurate. 25000 pounds towing capacity for me is adequate and I wish to moderate the maintenance and operating cost of the 4.10.

I can change the axle if I do it quickly, I just placed the order. Please elaborate on why I need the 4.10 axle on the back. I am not an expert, but I do know cost/benefit analyses.

I am more than open to explanations involving common sense.

Thanks!
My truck has the 3.42 and the 68RFE. I would recommend getting 4.10 or 3.73 gears with the 68RFE due to taller gearing in the first couple gears.

If getting the Aisin Trans, they have lower gearing in the first 3 gears so I would think 3.42s would not be bad.

All that said... my 68RFE with 3.42 gears locked in 5th, is very close to the same final ratio as an Aisin truck with 4.10s in 6th.... yes my truck won't "get out of the hole" near as fast, but on the interstate it does great in 5th.. and on flat ground 6th.

It all depends on the weight you want to pull and which trans you have, but my 3.42 / 68RFE truck is perfect with my 15k 5er, and is a joy to drive empty with better MPGS than the 4.10 trucks.
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Old 02-14-2017, 09:10 AM   #18
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So I am negotiating for a DRV Elite 40KSSB4, and the first "real" price from the dealer is $128,900 over the internet. Hmm... I'm pretty close to pulling the trigger here, a very nice unit.

At 40'10" with the RAM 3500 long box, subtracting 4 feet (or so) for the fifth wheel connection, I should be just under 60 feet in length. That limits me from some 55-foot states (NJ, MD, DC and Mississippi??), but good for the rest of the US.

The trailer max weight is 21000 pounds, 2700 of which is cargo. The RAM 3500 is configured to tow up to 25000, leaving a little cushion. I understand the real issue will not be towing, but stopping going down steep grades.

Somebody, please stop me from spending all this money!!
Does it have 3 AC units? If not you WILL wish you had them!!!

Contact Alicia at Rolling Retreats she will steer you in the right direction. She suggested 3 AC's I thought she was crazy but I would not be without them. Our MS is 41' long.
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Old 02-14-2017, 09:18 AM   #19
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So I am negotiating for a DRV Elite 40KSSB4, and the first "real" price from the dealer is $128,900 over the internet. Hmm... I'm pretty close to pulling the trigger here, a very nice unit.

At 40'10" with the RAM 3500 long box, subtracting 4 feet (or so) for the fifth wheel connection, I should be just under 60 feet in length. That limits me from some 55-foot states (NJ, MD, DC and Mississippi??), but good for the rest of the US.

The trailer max weight is 21000 pounds, 2700 of which is cargo. The RAM 3500 is configured to tow up to 25000, leaving a little cushion. I understand the real issue will not be towing, but stopping going down steep grades.

Somebody, please stop me from spending all this money!!

You will be FAR over that 21K weight!!! Mine was 18, 75 dry at the factory without the gen it's self. So let's say 18,500# dry, the RV weighs 23K. My combined weight is 33K.

Also that weight you should be getting 4.10's NOT 3.73's. You will have more pulling power better cruising power and better holding power on the grades. I would HIGHLY suggest the Factory rear.

Here is my cat Scale numbers. Truck has 9,750# on rear tires. RV is a 39TKSB3 at 41' actual length.


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Old 02-14-2017, 09:20 AM   #20
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My truck has the 3.42 and the 68RFE. I would recommend getting 4.10 or 3.73 gears with the 68RFE due to taller gearing in the first couple gears.

If getting the Aisin Trans, they have lower gearing in the first 3 gears so I would think 3.42s would not be bad.

All that said... my 68RFE with 3.42 gears locked in 5th, is very close to the same final ratio as an Aisin truck with 4.10s in 6th.... yes my truck won't "get out of the hole" near as fast, but on the interstate it does great in 5th.. and on flat ground 6th.

It all depends on the weight you want to pull and which trans you have, but my 3.42 / 68RFE truck is perfect with my 15k 5er, and is a joy to drive empty with better MPGS than the 4.10 trucks.
I echo what chertz has said here.

My 5er weighs in at 15k loaded up. I have towed it with a 2015 Ram 2500 with 3.42 gears and now with the same truck you have on order only a 2016 with 3.73 gears. The new truck pulls our trailer easier than the old one. The Aisin trans with the lower first couple gears has a much easier time getting the rig rolling.

You mentioned concern stopping/slowing.... The exhaust brake is awesome!
If you get a trailer equipped with disc brakes (most of the ones you have mentioned have them) it is a huge improvement over drum brakes making stopping much easier.

As Cummins12V98 mentioned, I too recommend the factory rear air suspension for your new truck. With it you will always tow level as shown in his picture.
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Old 02-14-2017, 09:24 AM   #21
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"25000 pounds towing capacity for me is adequate and I wish to moderate the maintenance and operating cost of the 4.10."

Your own number are placing you well over 25K. Who in the He!! told you the 4.10's cost more to maintain???

You REALLY need to listen to the people that own these trucks and tow HEAVY as I do. Your RV WILL be a minimum of 22K I guarantee it!!! That alone will put you at 32K combined. You will have more wear and tear with the wrong gearing with the 3.73's.
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Old 02-14-2017, 09:49 AM   #22
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Patriot: We have the same truck, or will have when yours arrives. We have a 2017 DRV 38RSSA. Be sure and get the 2 inch risers so your bed clearance is sufficient. We are loving our and will also!
I assume the 2 inch risers are something the dealer will understand for me?

More, I'm delighted to hear you are happy with your new DRV. I have been impressed with their videos and specifications.

We thought about buying a vacation home in the mountains or on the beach, but we like the option of changing vistas. In the luxury RV market, this fifth wheel is competitive with the largest Class A motorhome.

For equal quality, the cost is incomparable.
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Old 02-14-2017, 10:10 AM   #23
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"25000 pounds towing capacity for me is adequate and I wish to moderate the maintenance and operating cost of the 4.10."

Your own number are placing you well over 25K. Who in the He!! told you the 4.10's cost more to maintain???

You REALLY need to listen to the people that own these trucks and tow HEAVY as I do. Your RV WILL be a minimum of 22K I guarantee it!!! That alone will put you at 32K combined. You will have more wear and tear with the wrong gearing with the 3.73's.
I guess I would say I react to alarm with calm. If I have made a mistake and need to change the order, I want to do that.

I have looked at the weights for the truck I have ordered. From the manual:

3.42 20,520
3.73 25,360
4.10 30,660

So, I repeat. I am looking at putting something around 21,000 pounds in the back. Combined is no problem as you state, I am quite confident this truck can handle this load.

Please explain why I need 4.10. In my mind, that argument has not been made. So what the he?? with you.
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Old 02-14-2017, 11:02 AM   #24
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I guess I would say I react to alarm with calm. If I have made a mistake and need to change the order, I want to do that.

I have looked at the weights for the truck I have ordered. From the manual:

3.42 20,520
3.73 25,360
4.10 30,660

So, I repeat. I am looking at putting something around 21,000 pounds in the back. Combined is no problem as you state, I am quite confident this truck can handle this load.

Please explain why I need 4.10. In my mind, that argument has not been made. So what the he?? with you.

With the 3.73's towing at 60 in 6th for 32K combined you will be running too low of RPM's. 4.10's in 6th will be about 1,750, the 3.42's in 5th are about the same.

I towed 29K with the 3.42's and it worked well towing in 5th but the 68RFE was not good at getting the load rolling. Having owned both ratios I would take a 3.42 with AISIN any day over the 3.73's. For the best towing experience the 4.10's are the best especially as you are fulltiming and touring the country.

Don't believe the BS numbers DRV will give you. I would also get the 9K IS axles installed. You will be much better off ordering your RV.

I had full intentions of going with the Elite but there are too many GAWDY things and did a highly modified MobileSuites.
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Old 02-15-2017, 04:32 AM   #25
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With the 3.73's towing at 60 in 6th for 32K combined you will be running too low of RPM's. 4.10's in 6th will be about 1,750, the 3.42's in 5th are about the same.

I towed 29K with the 3.42's and it worked well towing in 5th but the 68RFE was not good at getting the load rolling. Having owned both ratios I would take a 3.42 with AISIN any day over the 3.73's. For the best towing experience the 4.10's are the best especially as you are fulltiming and touring the country.

Don't believe the BS numbers DRV will give you. I would also get the 9K IS axles installed. You will be much better off ordering your RV.

I had full intentions of going with the Elite but there are too many GAWDY things and did a highly modified MobileSuites.
OK, advice taken. I contacted the dealer to change to 4.10 with rear air suspension.

I do intend on ordering now and will ensure that heavy axels are installed.

I will weigh the empty RV and compare to DRV numbers, and certainly appreciate the input.

I think I will retire August 1st and drive out to Indiana to pick up my rig.

Thanks to all for these helpful suggestions. Glad I joined this forum.
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Old 02-15-2017, 09:11 AM   #26
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OK, advice taken. I contacted the dealer to change to 4.10 with rear air suspension.

I do intend on ordering now and will ensure that heavy axels are installed.

I will weigh the empty RV and compare to DRV numbers, and certainly appreciate the input.

I think I will retire August 1st and drive out to Indiana to pick up my rig.

Thanks to all for these helpful suggestions. Glad I joined this forum.

Good call, you will be VERY happy. Please take your rig directly to a CAT Scales and weigh the Combo and drop the trailer and re weigh the truck. I am willing to bet DRV's numbers are bogus.
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Old 02-15-2017, 06:14 PM   #27
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Seems like I am always seconding what Cummins says, but he is right on the 4.10s. We towed a DRV 38TKSB3 that was pretty light as far as DRV goes...it was about 17.500#. I towed it with a 2012 Ram Dually with 4.10s and a 2015 Ram Dually with 3.73s. I now have a SRW 3500 with 3.42s towing a 14,000# Arctic Fox.

The DRV was fine behind either of the duallys, but the 3.73s made it tough to find the correct engine rpm at a good speed. Either going too fast or too slow to put the engine around the torque peak. The 4.10s were good in 6th and the 3.42s are good in 5th. I would buy the 3.42s over 3.73s any day of the week.

I have never owned an Aisin, but if I was towing at the weight you will be, I would have one. You will love that truck! You have equipped it correctly!!
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Old 02-15-2017, 06:36 PM   #28
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I had full intentions of going with the Elite but there are too many GAWDY things and did a highly modified MobileSuites.
So, I haven't been able to find a list of differences between the Elite and Mobile Suites. Have you?

(Done deal with my truck, 4.10 with rear air suspension.)
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