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Old 02-11-2017, 12:48 PM   #43
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My one regret when I ordered my truck was not getting the aisin:(.
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Old 02-11-2017, 06:21 PM   #44
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My one regret when I ordered my truck was not getting the aisin:(.
Just wondering why?
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Old 02-11-2017, 06:55 PM   #45
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Just wondering why?


I got myself into a scenario towing my 16500lb th where I had to make a stop at a stop sign at the top of a very, very steep hill and then turn right into a main road (gps got me off on some side streets). I could barely get moving...1st gear and I couldn't move...about the time I thought about shifting to 4 low lock, I started moving.....slowly....tranny felt like it was slipping. Granted, this was a one in a hundred scenario, but I didn't like it at all. A lower first gear would of been nice to have.

Also, I ordered the truck knowing I was going to order a toy hauler, but the one I ended up ordering was about 3000lbs heavier than he original one I looked at. I've towed 13k miles all over the east coast and the mtns of west va on some sketchy back roads with very steep grades....the aisin likely would of been a better choice for me
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Old 02-11-2017, 07:04 PM   #46
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Thanks for the reply.

Interesting insight into the lower first gear issue. I have yet to run into that situation, but it may happen in the future. I will now be aware of it before hand.
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Old 02-11-2017, 07:09 PM   #47
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I had never run into it either...damn gps...I couldn't roll through the stop sign due to traffic...I would guess the hill was 18-20%...maybe more? my front wheels were at the stop sign and the entire rest of the truck and th was hanging down the hill. Not a good feeling
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Old 02-12-2017, 08:28 AM   #48
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Thanks for the reply.

Interesting insight into the lower first gear issue. I have yet to run into that situation, but it may happen in the future. I will now be aware of it before hand.
What is your combined weight?

My 11 HO RAM Dually had 3.42's towing a combined 28-29K. ONLY real issue was taking off on a grade. I did put it into 4 low one time as I did not want to cause damage. With my current setup towing 33K combined I have been on a similarly steep grade and the truck took off with ease thanks to the tight fluid coupling and lower starting gears of the Medium Duty AISIN trans.
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Old 02-12-2017, 10:24 AM   #49
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I haven't weighed the trailer yet, but should be about 24,000 gross. The truck weighs 8,000 or so and the trailer is rated at 15,700# gross. I don't foresee any issues, but on a really steep slope....maybe. With the 15% lower first gear ratio, the Aisin certainly has an advantage.

I did give the Aisin some thought as current internet wisdom says it is a "better" transmission. However, I've towed heavier with a 68rfe in the past and had no issues, so I ended up staying with one this time.

If I had been contemplating towing as heavy as you do, I would have bought the Aisin. But for me it was a financial trade off as I am just not going to tow that much.
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Old 02-12-2017, 10:33 AM   #50
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I haven't weighed the trailer yet, but should be about 24,000 gross. The truck weighs 8,000 or so and the trailer is rated at 15,700# gross. I don't foresee any issues, but on a really steep slope....maybe. With the 15% lower first gear ratio, the Aisin certainly has an advantage.

I did give the Aisin some thought as current internet wisdom says it is a "better" transmission. However, I've towed heavier with a 68rfe in the past and had no issues, so I ended up staying with one this time.

If I had been contemplating towing as heavy as you do, I would have bought the Aisin. But for me it was a financial trade off as I am just not going to tow that much.
At your weight I would have no issue with the 68RFE. But now that I have owned the AISIN for 32K I would not go back.
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Old 02-18-2017, 07:26 PM   #51
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Solitude Weights

Specs of a 310GK-R weighted at a CAT scale on 30 Oct 2016
Status from Grand Design Website.
UVW 12,100
Dry Pin Weight 2350


From Grand Design Weight Sheet that came with my 5er and has my VIN listed on the top of the sheet.
GVWR 15,000
GAWR (Per Axle) 7,000
UVW 12226 (Matches Sticker on 5er)
Hitch Weight 2392
Left (Street Side) 5326
Right (Curb Side) 4508
Cargo Carrying Capacity 2714


Truck Specs
Ford F350 Diesel SuperCab 143” Wheel Base 6.5 foot bed.
B&W Campion Hitch non slider
Web Spec 4080 Payload
Yellow Door Sticker 3744
GVWR 11,500
Rear Axle Ratings 7,000
Front Axle Ratings 5,200
GCWR 22,500
Tow Rating 15,900


Truck ONLY Weight Cat Scales
Front Axle Weight - 4740
Rear Axle Weight - 3480
Total Weight 8220
Cat Scale With 5er Hooked up
Steering Axle - 5000lbs
Drive Axle 6320
Trailer Axle 10,520
Gross Combine Weight 21,840


Bottom Line
Truck Weight (Truck Only) 8220
Truck Weight (Hitched) 11,320
Camper Weight 13,620
Pin Weight 3,100
Pin Weight Percentage 22.8%
2392 Factory Pin Weight 3100 scale weight increase of 708 pounds
12,226 Factory UVW 13,600 Cat Scale Weight increase of 1374 lbs
Over 50% of the 1374 pounds loaded went to pin weight
Just goes to show how much weight is loaded forward of the axle
Factory Scale weighs of 2392 pin and 12,226 UVW = 19.6 percent pin weight
Cat Scale Weights 13600 GVW and 3100 pin = 22.8 percent pin percentage or increase of 3.2 Percent over Dry percentage
I’m within 180 pounds of my GVWR of my trucks 11,500 GVWR. We were loaded for a week long trip and we are not full timing....
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Old 03-03-2017, 10:30 AM   #52
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3/4 ton Trucks

I have a 2015 Ram 2500 4x4 diesel single rear wheel. I've been hauling my Gateway for a couple of years with no problem. Lately, I've been thinking of a new front living area 5th wheel and have been learning a lot about GVWR, pin weight, towing capacities, and payloads. What I've learned is that a 3/4 ton truck (Ram 2500, F250 etc) can't haul squat!! The GVWR on my Ram is 10,000#. I ran it across a CAT scales yesterday and found it weighs 8540# with full fuel tank and two people. So that only leaves 1460# payload. I think it would be hard to find any 5th wheel with pin weight of less than 1500#. (The FL RV I've been looking at is 2675#.) Yet driving down the road, I've seen hundreds of 3/4 ton (2500 series trucks) hauling 5th wheels. You know every one of those, including mine, is legally overloaded. Had I done all this research when buying my Ram 2500 in the first place, I'd have gone for the 3500. Of course any dealer, truck or RV, will tell you flat out that a 3/4 ton truck will be just fine for pulling that new 5th wheel they want you to buy. They will tell you your Ram 2500 will tow 17,000# and that this new RV is only 13,000# so you are "golden" (the term the salesman used). Problem is not with the towing capacity which is ok, but with the GVWR of your truck with that 2675# pin weight pressing down making your truck 1250# over GVWR.
Do your research, don't trust the truck and RV salesman and be careful overloading!
Bill
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Old 03-03-2017, 02:31 PM   #53
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I have a 2015 Ram 2500 4x4 diesel single rear wheel. I've been hauling my Gateway for a couple of years with no problem. Lately, I've been thinking of a new front living area 5th wheel and have been learning a lot about GVWR, pin weight, towing capacities, and payloads. What I've learned is that a 3/4 ton truck (Ram 2500, F250 etc) can't haul squat!! The GVWR on my Ram is 10,000#. I ran it across a CAT scales yesterday and found it weighs 8540# with full fuel tank and two people. So that only leaves 1460# payload. I think it would be hard to find any 5th wheel with pin weight of less than 1500#. (The FL RV I've been looking at is 2675#.) Yet driving down the road, I've seen hundreds of 3/4 ton (2500 series trucks) hauling 5th wheels. You know every one of those, including mine, is legally overloaded. Had I done all this research when buying my Ram 2500 in the first place, I'd have gone for the 3500. Of course any dealer, truck or RV, will tell you flat out that a 3/4 ton truck will be just fine for pulling that new 5th wheel they want you to buy. They will tell you your Ram 2500 will tow 17,000# and that this new RV is only 13,000# so you are "golden" (the term the salesman used). Problem is not with the towing capacity which is ok, but with the GVWR of your truck with that 2675# pin weight pressing down making your truck 1250# over GVWR.
Do your research, don't trust the truck and RV salesman and be careful overloading!
Bill

Subtract your FULLY loaded trucks rear axle weight from your trucks RAWR. That is what you can "carry" with a 5er as very little weight goes to your front axle. The trucks GVWR is for licensing and insurance purposes. Add tonnage if need. You can carry more than you think!
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Old 03-04-2017, 05:25 PM   #54
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Subtract your FULLY loaded trucks rear axle weight from your trucks RAWR. That is what you can "carry" with a 5er as very little weight goes to your front axle. The trucks GVWR is for licensing and insurance purposes. Add tonnage if need. You can carry more than you think!
This is contrary to the information posted by the truck manufacturers. Have looked at all of their information and all suggest rather strongly that the GVWR not be exceeded.
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Old 03-04-2017, 05:35 PM   #55
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Originally Posted by Bill98116 View Post
I have a 2015 Ram 2500 4x4 diesel single rear wheel. I've been hauling my Gateway for a couple of years with no problem. Lately, I've been thinking of a new front living area 5th wheel and have been learning a lot about GVWR, pin weight, towing capacities, and payloads. What I've learned is that a 3/4 ton truck (Ram 2500, F250 etc) can't haul squat!! The GVWR on my Ram is 10,000#. I ran it across a CAT scales yesterday and found it weighs 8540# with full fuel tank and two people. So that only leaves 1460# payload. I think it would be hard to find any 5th wheel with pin weight of less than 1500#. (The FL RV I've been looking at is 2675#.) Yet driving down the road, I've seen hundreds of 3/4 ton (2500 series trucks) hauling 5th wheels. You know every one of those, including mine, is legally overloaded. Had I done all this research when buying my Ram 2500 in the first place, I'd have gone for the 3500. Of course any dealer, truck or RV, will tell you flat out that a 3/4 ton truck will be just fine for pulling that new 5th wheel they want you to buy. They will tell you your Ram 2500 will tow 17,000# and that this new RV is only 13,000# so you are "golden" (the term the salesman used). Problem is not with the towing capacity which is ok, but with the GVWR of your truck with that 2675# pin weight pressing down making your truck 1250# over GVWR.

Do your research, don't trust the truck and RV salesman and be careful overloading!

Bill


Excellent points. When I did my research posts like this were noted and I skipped the 2500 and went to the 3500 srw. That being said, I'm right up against all my weight ratings.

I do tend to see a lot of 2500's pulling triple axle toy haulers that weigh a lot more than mine
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Old 03-05-2017, 09:33 AM   #56
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This is contrary to the information posted by the truck manufacturers. Have looked at all of their information and all suggest rather strongly that the GVWR not be exceeded.

OK, for arguments sake how can I load my rear axle to it's RAWR of 9,750# and adding nothing to the front axle and NOT be over 14K? My unloaded front axle is around 5,200#. So just loading my rear axle to the SPECS my trucks combined weight is 15K. It's a numbers game, learn to play or don't!
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