Originally Posted by lukenick1
Redhorse1...why did you use the 4970# and not the 5420# to get the TT weight?
Using the 4970 (tv only) will give you the total loaded trailer weight, including the tw.
The "net" tw is 450lbs, but remember that is with your wd bars hooked up so your actual ("gross") tw will be higher. With the wd bars hooked up some of the tw is transferred back to the trailer axles. Depending on how your wdh is adjusted, generally none of the tw is transferred to the tv front axle. ONLY the weight that is "lost" from the front axle is reccomended to be returned once the wd bars are hooked up.
Think of a teeter totter:
Your tv only front and rear axles weigh "X" and "Y", but drop the tongue on the ball (no wd bars) and the rear axle weighs more while the front axle weighs less due to the teeter totter effect pivoting on the rear axle. The front axle weight that is "lost" from this is what you want to "return" by hooking up the wd bars. Your owners manual will state how the manufacture recommends the wdh be adjusted and if you should return 100% of the lost weight, or possibly only 50%, or something
While your bff used a scale to get the actual (gross) tw, you could have figured it out if you had weighed at least one more time. Quick side question, did the scale you used to weigh the tv & tt have only one large scale, or was there more than one scale for different axles?
If only one scale, you did get some of the weights needed, but these are all the weights you need to figure everything out without a tongue scale:
TV & TT for the total rig weight
TV only front axle (or rear, can figure the other as long as you have one)
With the wd bars hooked up:
TV front axle only
TV front and rear axles on scale
With the wd bars unhooked
TV front axle only
TV front and rear axle
Having the tv only front axle gives a base weight to compare to, to see if the wdh is adjusted properly. This is one weight it looks like you are missing.
Also, some wdh manufactures may have a different number of chain links attached to the wd bars, so it is easier to know how many links are under tension (between the wd bar and the snap up bracket) than to say how many links are hanging, as we don't know the total number of chain links your wdh has.
Do you have a CAT Scale near you? That is easier to get all the needed weights as they have 3 seperate scales. Just make sure you stop so the front axle (steer) is on one, the rear axle (drive) is on another, and the tt axles are on the last one.
I think I got all the weights you need to figure everything.
Hope this helps!