RV.Net Open Roads Forum: Tow Vehicles: Help me understand GCWR

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Open Roads Forum  >  Tow Vehicles

 > Help me understand GCWR

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SoCalDesertRider

SanDiego, CA, USA

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Joined: 12/14/2003

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Posted: 03/10/12 08:37am Link  |  Print  |  Notify Moderator

The Tow Rating is derived from the GCWR (GCWR - UVW = Tow Rating), so if the GCWR is a worthless number, so is the Tow Rating number....


05E350 6.0PSD
97F350DRW 7.3PSD 4x4 4.10 11' flatbed
98Ranger
69Bronco ATC250R CR500
20' BigTex flatbed carhauler
Callen Camper

92F350 CrewCab 4x4 351/C6
B&W TurnoverBall, Curt Magnum V
HD Springs Bilsteins,
285/75-16E BFG AT on 16x8 Stocktons
4.56's & LockRite rear

blt2ski

Kirkland, Wa

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Joined: 03/15/2001

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Posted: 03/10/12 07:58pm Link  |  Print  |  Notify Moderator

THen depending upon the what and where you are towing, a given rig might have multiple tow ratings based on the need of the end user. For me, I want a rig that will tow at a given wt up at last a 30% grade. Guess what, my Dmax rated at 23500 has a 23-25% max grade pull at 20K lbs. So for me any how, it should not be rated at 23500, maybe 17-18K or there abouts! Meanwhile, my old 96 K3500 SW with the ever dissed 6.5td, had the ability at 20K to go upa 30% grade due to the MUCH lower overall gearing, torque multiplication etc.....but had a whopping 12500 GCWR! hmmmmmmmmm so at the end of the day, which is the better tow rig?

OH, but the dmax at 20K will pull a 3-5% grade at 60 plus mph, the 6.5 maybe 35-40 mph! so again, which is the better tow rig?!?!?!?

One needs to base a tow rig on WHAT THEY will do, go etc. What works for me maybe different than what works/preforms the way you want it to work!

Reality is, some rigs, even my dmax CCdually, might not be able to tow at its rated GCWR, if you have a given rig at GVWR/max axle ratings before hooking up a trailer, reality is, said rig is incapable of towing a trailer unless it has 0% hitch wt, which most of us would argue is unsafe.

At the end of the day, which ratings are really the one(s) one should follow?

marty


05 Chev CC D/A LS Dooley

92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
00 Chev C2500, V5700, 4L80E, 4.10, base truck, no options!
92 Red-e-haul 12K equipment trailer
3 Single axle utility trailers

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