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Old 08-18-2015, 09:28 AM   #11
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Need: I unfortunately agree with your assessment. the rear end on my 2007.5 is exhibiting excessive rotational slop in the drive shaft. Excessive in my opinion is about 1 inch of free rotation at the differential. I bought the truck used with about 90k on it. After towing all summer I am looking into having the rear end rebuilt at the end of the season. I'm probably going to upgrade the diff with one of those girdle covers once the ring gear and pinion is replaced. I hope to god the spiders make it till the end of summer. I'm keeping an eye on it and checking fluid levels.
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Old 08-18-2015, 09:35 AM   #12
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Originally Posted by gradertb View Post
snip....... Do tow ratings mean anything?.......snip
Published Tow Ratings standing alone can be misleading, and what's interesting is that RV sales folks tend to reference them often in the same breath with TT published dry weights........ go figure .

As far as published vehicle Tow Ratings, you may find the following info interesting: https://www.jaycoowners.com/forums/f3...ting-3866.html

As mentioned, there are other vehicle weight specifications (GVWR, GAWR's, etc) that are important and should be considered.

Bob
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Old 08-18-2015, 11:04 AM   #13
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Originally Posted by need-a-vacation View Post
Grumpy,

That is true if you are referring to a diesel 2500/3500. But a 6.0 2500 does not have the same rear end as a diesel 2500/3500, or a 6.0 3500. 6.0 2500 gets the 10.5", and all diesels/ 6.0 3500 get the 11.5" rear end.

Everything else from what I have found is the same as you posted.

Things may have changed since the last time I looked into it which was about a yr ago.
At least for 2015 the rear axle capacity of both the 2500 6.0 and 6.6 diesel are 6,200 lbs, not sure what previous years were. The diameter is based on rear axle ratio 4.10 vs 3.73 and you can get both with the 6.0 and only the 3.73 with the 6.6.

The 3500 shows 7,050 lbs for both but the 3:73 was not showing available for the 6.0 only the 4.10, but again the rear spring pack on both are identical.
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Old 08-18-2015, 08:07 PM   #14
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Darin, I hear you on the paperwork. But... We arnt held to the same standards as commercial rigs. You're right a BUNCH of 3/4 tons are overloaded out there. It's hard not to be. The wifey, the kids, dog, and bikes and minor bulky stuff for me is like 750 pounds. Plus my 1300 tw, I'm cooked.

These 3/4 ton crews are highway queens, and pulling rigs only. I don't kid myself... You don't pickup gravel in your RV tow rig, and you don't take your one ton dump body camping. Fact of life.
I don't disagree with any of that. I have been told by people out here in California that the CHP has weighed some of the pick-ups towing the large toy haulers and putting them out of service for being overweight. I am not worried about that. My concern is with potential lawsuits if I am involved in an accident and the CHP weighs my rig and finds me overweight. In California, the lawyers would take me for everything I've got. I can't leave California until I retire in around 10 years.

I just need to take my TT/TV to the scales and see what my actual numbers are. I know it will be close and I know the truck can move and stop the trailer. I just want to be legal and have peace of mind.
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Old 08-18-2015, 08:38 PM   #15
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Originally Posted by ctbailey View Post
Need: I unfortunately agree with your assessment. the rear end on my 2007.5 is exhibiting excessive rotational slop in the drive shaft. Excessive in my opinion is about 1 inch of free rotation at the differential. I bought the truck used with about 90k on it. After towing all summer I am looking into having the rear end rebuilt at the end of the season. I'm probably going to upgrade the diff with one of those girdle covers once the ring gear and pinion is replaced. I hope to god the spiders make it till the end of summer. I'm keeping an eye on it and checking fluid levels.
Is your truck 4wd? Have you considered stepping up to 4.10's even if it is 4wd? You will already have the rear apart, so it's not like you are replacing a good set of f&r gears. Just a crazy thought!!!

Scary thing from what I have found is the 10.5" rear end is what used to be in the 3500's a few years ago (can't remember exactly, late 90's, early 2k maybe???)

Hope all goes well! What about looking into a 11.5" rear end from a junk yard if the price is right? Hard to say how the first 90k miles were on the truck.



Quote:
Originally Posted by Grumpy View Post
At least for 2015 the rear axle capacity of both the 2500 6.0 and 6.6 diesel are 6,200 lbs, not sure what previous years were. The diameter is based on rear axle ratio 4.10 vs 3.73 and you can get both with the 6.0 and only the 3.73 with the 6.6.

The 3500 shows 7,050 lbs for both but the 3:73 was not showing available for the 6.0 only the 4.10, but again the rear spring pack on both are identical.
The 6.0 trucks are only available with the 4.10's for '15. I just tried building one and if you want the 3.73, it states diesel engine. Wasn't sure if something had changed since last I knew. BUT, maybe it is a location thing??? GM is known to do weird things at times! Lol

My '13 has a 6200lb rar. I think the 2500's are limited to 6200lbs because of the optional 20" rims & tires, and spring pack. They are not rated as high as the 18" rims/ tires, which is the only rim/ tire combo available on the 3500's (last I knew! Lol)

Up through the '14 model the 3.73 and 4.10 gears were available in both the 10.5" and 11.5" axle. Just depended on which motor you had in the 2500HD as to whether you got the 10.5" or 11.5" axle.

Now for '15 GM may have gone to only one axle for the 2500's. I haven't looked at the new trucks close enough yet to know for sure. The front of the 10.5" axle has a removable "front" pinion, where the 11.5" is an all one piece housing in the front with only the rear dif cover.
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Old 08-18-2015, 08:55 PM   #16
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Yeah I looked into gear swap... Briefly until I heard my guys estimate of "could be a couple thousand..." The 2007.5 and up 6 speed Alison changed things quite a bit as I understand. I'm not interested in pulling a wrecked trucks' rear end, either because of the same uncertainty of its previous life.


Na.... I'm going to tune this baby up and get er back to factory and run it another 60k. By then I'll be ready for my one ton SRW diesel crew.
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Old 08-18-2015, 09:13 PM   #17
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Darin,

I think your payload figure is a bit low. Check this info:

2001 F250/F350 SD Weights Frame Page

The lowest payload number I see is 2,645 pounds.

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Old 08-18-2015, 09:46 PM   #18
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Darin,

I think your payload figure is a bit low. Check this info:

2001 F250/F350 SD Weights Frame Page

The lowest payload number I see is 2,645 pounds.

Murff
Murff, I like your numbers a lot better than mine. Your chart shows 2780 lbs for my truck. Wouldn't that make my truck weigh about 6000 lbs though? If so, that makes things all better for me. I am concerned that your chart doesn't account for different engines. The weight of my 7.3 is what kills a lot of my payload. I am still going to get it weighed and subtract that number from 8800. That should give me the actual max payload for my truck. What does that very last chart on your link mean?
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Old 08-19-2015, 08:36 AM   #19
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Even those numbers are misleading. The equivalent chart on that site for my 2012 F-250 Crew Cab 4x4 shows that I have a payload of 3200(ish)lbs, but the door post sticker says my cargo is 1994lbs. I guess once you add in all of the extras on my truck (Diesel which is the big culprit, tow package, leather seats, DVD players, FX4 package, 26 gallons of fuel, 5 gallons of DEF, etc) it all adds up to about 1200lbs.

The only way to be sure is to weigh your truck. GVWR - curb weight = actual payload (including people) ... and then you need to make sure you don't surpass your FAWR and RAWR (Front/Rear axle weight rating).

Find some CAT scales near you and find out for sure.
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Old 08-19-2015, 04:29 PM   #20
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Smart guy answer=only to the D.O.T. Cops after an accident.

In real life, you probably don't want to get too carried away, but lots and lots and lots of people (including myself) knowingly over load their trucks and no one bats an eye...
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