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Old 03-25-2019, 03:37 PM   #41
porthole
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‘Stability’ is an advertised feature.
And in detailed literature it is documented why the jacks are angled.

And the other documented feature is that the controls will not allow the frame to twist.
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Old 03-25-2019, 03:46 PM   #42
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So? They also advertise it as a 5th wheel. Mine has 6. Some only 4

Bill
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Old 03-26-2019, 09:09 AM   #43
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To be honest my 07.5 DRV with 4 was more stable then current 16. Biggest reason is the front cylinders have a sieve around the piston that allows side to side movement. My 07.5 had front jacks that were large versions of the rear jacks.

My Machinist friend will look into a way to increase stability of those selves possibly with some sort of UMHV spacer.

Like I said I would manually extend the front and rear a bit and see if that helps.

porkchop, did you copy my blocks???
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Old 03-26-2019, 10:00 AM   #44
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Cummins=No, just the idea. I purchased some 8x10 wood posts from a road contractor and cut them 12" long and put handles on them. $6 and I was happy. If I ever need to replace them I will copy yours.

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Old 03-26-2019, 10:43 AM   #45
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Cummins=No, just the idea. I purchased some 8x10 wood posts from a road contractor and cut them 12" long and put handles on them. $6 and I was happy. If I ever need to replace them I will copy yours.

Bill
I was messing with you! If you do decide to go like mine I will give you all the dimensions and some other details if you want.

Just built a set with another DRV owner recently.
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Old 03-26-2019, 11:17 PM   #46
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I saw today a triple axle very large MS for sale at Palm Creek golf and rv resort in Casa Grande ax.

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Old 07-08-2019, 10:29 AM   #47
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Iím hoping to compare a bunch of 39DBRís of varying ages at 3 different rallies in the next 3 months.
Anything ever come of this? Kinda been hoping for a run down of what this floor plan has to offer.
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Old 07-08-2019, 02:50 PM   #48
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Porthole,

Given the numbers for your '19 39DBRS3 (4,080 pin / 20,680 trailer), the pin % = 19.7

My '19 40KSSB4 CAT Scale numbers (3,920 pin / 19,850 trailer), the pin % = 19.8 Our tow vehicle is an '18 Ford F-350 dually and the CAT scale weighed our total rig with my wife and me in the cab and a full load of diesel (48 gals) at 29,500 lb.

Fairly close pin percentages I'd say.

I don't have a generator or fuel but I am counting (2) 40lb propane bottles at 75% full each and (2) Trojan T-105 batteries at 130 lb total. Estimate water, including tanks and hot water heater total = 28 gal. Trailer empty = 18,330 lb. + contents 1,520 lb. = 19,850 lb. loaded. Unless you're equipped with an on-board generator + fuel and any other extra heavy items, I'm thinking that a pin weight percentage of 20-21% should be a good number. With a generator and other heavy items located near the front of the camper, I'd estimate a pin weight greater than 21% of the total loaded trailer weight. Not sure what that % is but you would certainly want to weigh the rig and get the actual weights. Be careful not to exceed the tow vehicles payload capacity. One thing for sure, DRV 5th wheels are heavy.
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Old 07-09-2019, 04:59 PM   #49
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Porthole,

Given the numbers for your '19 39DBRS3 (4,080 pin / 20,680 trailer), the pin % = 19.7
Those are not my numbers.
My pin at last weigh is 18.7%


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Fairly close pin percentages I'd say.

I don't have a generator or fuel but I am counting (2) 40lb propane bottles at 75% full each and (2) Trojan T-105 batteries at 130 lb total. Estimate water, including tanks and hot water heater total = 28 gal. Trailer empty = 18,330 lb. + contents 1,520 lb. = 19,850 lb. loaded. Unless you're equipped with an on-board generator + fuel and any other extra heavy items, I'm thinking that a pin weight percentage of 20-21% should be a good number. With a generator and other heavy items located near the front of the camper, I'd estimate a pin weight greater than 21% of the total loaded trailer weight. Not sure what that % is but you would certainly want to weigh the rig and get the actual weights. Be careful not to exceed the tow vehicles payload capacity. One thing for sure, DRV 5th wheels are heavy.
I do have a generator (diesel with a 28 gallon fuel tank) 175 pounds of batteries all the way in the front closet, two full propane tanks and I am under 19%.
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Old 07-09-2019, 05:00 PM   #50
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Anything ever come of this? Kinda been hoping for a run down of what this floor plan has to offer.
As far as what?
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Old 07-09-2019, 05:03 PM   #51
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So a few things were determined at the National rally by Lippert.
First is that DRV should have changed my hydraulic pump out per Lippert's instructions and case number instead of ignoring the problems and just adding fluid - overfilling my tank.

Lippert Looked into the rear jack postion and agree they are too far forward.

My front jacks are actually angled towards the rear slightly.

No wonder our trailer shakes so much, an upside down triangle has no stability.
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Old 07-10-2019, 01:40 AM   #52
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Quote:
Originally Posted by porthole View Post
Iím hoping to compare a bunch of 39DBRís of varying ages at 3 different rallies in the next 3 months.
This is the quote I was referring to when I asked if anything ever came of your survey of 39DBRSís.
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Old 07-10-2019, 08:04 AM   #53
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Lippert Looked into the rear jack position and agree they are too far forward.

So what is called for in the future? Are the rear jacks going to get moved, what is recommended distance?


Thanks Clay
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Old 07-10-2019, 09:50 AM   #54
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"Lippert Looked into the rear jack postion and agree they are too far forward."

Lippert built the frame. Why wasn't this corrected in the engineering stage? Same with the angled front jacks.
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Old 07-10-2019, 09:57 AM   #55
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I can tell you with the front sleeved jacks they have SLOP in them. With 3" risers our rig did have some movement. After adding my Custom made blocks the rig is very solid, why??? because the rams are extended much less and are more stable.



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Old 07-11-2019, 10:50 AM   #56
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Quote:
Originally Posted by Begger View Post
Anything ever come of this? Kinda been hoping for a run down of what this floor plan has to offer.
Quote:
Originally Posted by porthole View Post
As far as what?
Quote:
Originally Posted by Begger View Post
This is the quote I was referring to when I asked if anything ever came of your survey of 39DBRSís.
so ......

I don't remember the exact reason for that comment, but it probably relates to axle placement and fenders.

I only saw 2019 and 2017 39DBRS3's at the last two rallies, and none on the assembly line in Howe (was mostly toy haulers that day).

Axle placement was the same, as well as crudely cut fenders.

What I did see when comparing models:
The Houston is a longer, 3 axle version of the 39DBRS3.

From the rear edge of the entry door, the two trailers are identical going forward.

All the extra length (about 4') is from the door back.
I don't recall the weight difference, but the brochure lists a dry wight of 16,800 for the 39 and 19,700 for the Houston.

The Houston is 2,900 pounds heavier

GWR for the 39 is 21,000 - two 9,000 pound axles plus 3,000 for the pin.
GWR for the Houston is 24,000 - three 8,000 pound axles, no pin added.

Comparing the Houston to the 39.
The Houston front axle is located about where the rear axle is located on the 39.

Crude pictures but you get the idea.

Also, the angle of attack for the Houston is less since the rear axle is much closer to the rear cap, trailer hitch.
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Old 07-11-2019, 10:52 AM   #57
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Quote:
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"Lippert Looked into the rear jack postion and agree they are too far forward."

Lippert built the frame. Why wasn't this corrected in the engineering stage? Same with the angled front jacks.

Whose excuse do you want to use?

Lippert - we build them to DRV specs
DRV - just a run around
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Old 07-11-2019, 10:54 AM   #58
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So what is called for in the future? Are the rear jacks going to get moved, what is recommended distance?


Thanks Clay

I doubt anything will change.

How many people do you know that prior to purchase got in the rig on jacks and walked, bounced around to check stability?

And after seeing how much movement there was walked away from the deal?
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Old 07-11-2019, 11:57 AM   #59
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Thanks Duane. All good information!!!
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Old 07-12-2019, 09:53 AM   #60
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Whose excuse do you want to use?

Lippert - we build them to DRV specs
DRV - just a run around
I think we called that a "CircleJerk" in Construction.
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