Quote:
Originally Posted by Riwright
<edited to correct numbers>
Here are my numbers from the weigh-in today.
2003 3124KS
2005 Tundra Double Cab w factory tow package
With Chains* Engaged
Front Axle 2800
Drive Axle 3200
Trailer Axle 4060
Total 10060
With Chains released
Front Axle 2660
Drive Axle 3420
Trailer Axle 3960
Total 10040
No Trailer
Front Axle 2900
Drive Axle 2600
Total 5500
Check my math here:
Trailer Weight 4560
Tongue Weight w Chains engaged 600
Tongue with no chains 820
Limits for my 2005 Tundra Double Cab
Gross Combined Weight Rating:11800 - Under by 1800 lbs
Towing Capacity: 6800 -- under by 2240
Not sure what the limits are for the trailer, I'll have to look at the sticker again.
Looks like I'm well within limits for everything which is what I expected. I owned a 3500 lb rated 2000 Lexus RX300 when I bought the Trailmanor but it did NOT work out with a couple of short test tows that I did. I don't remember what the literature said the trailer weighed when I bought it but it was below 3500 lbs so I gave it a shot. I don't see how that trailer could ever be that light.
With what I've learned here, I was not surprised the see the trailer weigh over 4000 but 4500 did surprise me.
WDH is doing exactly what it is designed to do. Front axle weight with chains engaged is within 100 lbs of what it is with the truck unloaded.
*By "chains" I mean the chains in the weight distributing hitch
|
Thanks for posting your scale numbers.
You get the tongue weight by subtracting the unhitched TV Gross Weight from the hitched TV Gross weight with the bar chains slacked. Your tongue weight is either 580 or 600, depending on how you view the 20# discrepancy between using the WDH and using the same hitch with the bar chains slacked (perhaps a scale error, or maybe somebody let the dog out).
Without the WDH, the 590# tongue (+- 10#) is adding 820# to the rear axle and subtracting 240# from the front. (bar chains slacked)
With the WDH, the tongue adds 100# to the trailer, 600# to the rear axle, and subtracts 100# from the front.
The spreadsheet is attached.
With an unhitched trailer, the weight at tongue post would be slightly more than the weight if measured at the hitch ball, because it has a shorter lever arm to the trailer axle, and the trailer axle would be be less by exactly the same difference if measured at the same time. But there's no need to actually measure the tongue weight separately because it is so easily calculated from the truck scale weights.