Weight and WD number check in aisle 4.
Took my new to me truck wnd my TT to the scales yesterday to get some numbers. TT and Truck with WD. Steer Axle 4040# Drive Axle 4280# Trailer 7320# Total 15640# TT and truck with...
Forum Discussion
Let me take a shot at this. I think that in order to know your exact tongue weight you would have had to leave the hitch and bars in the bed.
But, you can figure out:
Truck alone weights 7260 (directly from #3)
Trailer + hitch weights 8390 (15650* - 7260)
Weight removed from front axle by adding trailer and hitch: 500 (4120-3620)
Weight returned to front axle by WD: 420 (4040-3620)
Weight transferred to trailer axle by WD: 160 (7320-7160)
Total weight transferred: 580 (420+160)
I think you might have transferred back a little too much weight. If the hitch weighs 100, then the trailer effect is 400 (i.e. the sa weight of the truck would have been 4220), and you are returning more than you lost (400-420=-20).
Tongue weight + hitch weight: 1240 (3620+4880) - 7260
Note: tongue weight is about trailer balance, and is figured without the WD bars engaged (there would be no WD if you were just using a tongue scale).
Assuming you WDH+bars weights 100, that gives you a trailer weight of 8290, and a tongue weight of 1140, and a tongue weight % of 13.75.
If the WDH+bars is 50, it is 8340, 1190 and 14.26%
and 150 8240 1090 13.22%
200 8190 1040 12.6%
Given the rv.net forums wisdom of targeting around 10-15% (and assuming it might be better to be on the high side), you seem OK here as long as the WDH is somewhere between 50-200.
*Note: the scales are only accurate to 20 lbs, so you got 15640 and 15660 as your total weights. I used 15650 for these (i.e. I assumed you were between them).
So, it seems to me that if you back the WD off one tick you are in good shape.
Bret
p.s. I just did this exercise for myself after a bunch of reading here, and this is my first attempt to return some of the knowledge I gained back to the community. Take it with a grain of salt :-)
But, you can figure out:
Truck alone weights 7260 (directly from #3)
Trailer + hitch weights 8390 (15650* - 7260)
Weight removed from front axle by adding trailer and hitch: 500 (4120-3620)
Weight returned to front axle by WD: 420 (4040-3620)
Weight transferred to trailer axle by WD: 160 (7320-7160)
Total weight transferred: 580 (420+160)
I think you might have transferred back a little too much weight. If the hitch weighs 100, then the trailer effect is 400 (i.e. the sa weight of the truck would have been 4220), and you are returning more than you lost (400-420=-20).
Tongue weight + hitch weight: 1240 (3620+4880) - 7260
Note: tongue weight is about trailer balance, and is figured without the WD bars engaged (there would be no WD if you were just using a tongue scale).
Assuming you WDH+bars weights 100, that gives you a trailer weight of 8290, and a tongue weight of 1140, and a tongue weight % of 13.75.
If the WDH+bars is 50, it is 8340, 1190 and 14.26%
and 150 8240 1090 13.22%
200 8190 1040 12.6%
Given the rv.net forums wisdom of targeting around 10-15% (and assuming it might be better to be on the high side), you seem OK here as long as the WDH is somewhere between 50-200.
*Note: the scales are only accurate to 20 lbs, so you got 15640 and 15660 as your total weights. I used 15650 for these (i.e. I assumed you were between them).
So, it seems to me that if you back the WD off one tick you are in good shape.
Bret
p.s. I just did this exercise for myself after a bunch of reading here, and this is my first attempt to return some of the knowledge I gained back to the community. Take it with a grain of salt :-)
