Help me make sense of the scale numbers
Since switching from a 2012 F250 to a 2014 Ram 3500, I've got a "pin high" issue that is concerning. When on the truck, the pin is a full 7" higher than it is when off the truck and level. Fearing t...
Forum Discussion
NC Hauler wrote:RCMAN46 wrote:
True pin weight is the difference of total truck weight with and without trailer attached. In the OP's case his hitch must be behind the centerline of the rear axle which results in unloading of the front axle.
Truck only is 5080 + 3380=8460
Truck with trailer is 4820+6080=10900
Thus the true pin is the difference of 2440.
Don't believe you're right on the pin weight number, ..You take the unloaded weight of the truck, you will get drive axle weight (rear axle)...then you hook the 5er up to the hitch and re weigh, the "PIN WEIGHT" of the 5er is considered the weight setting on the hitch, which is setting over or very near one's Rear axle..THUS the difference is what his empty weight of his rear axle was 3380, loaded it was 6080, thus pin weight is 6080,(the weight of the 5er setting in the hitch), less the unloaded weight of the drive 3380,(rear axle)...which give you 2700# of pin weight for his 5er
Look up what constitutes "pin weight"...I'm not talking total weight of the truck before and after, and even IF some weight were transferred to the front axle, (in which case, this one didn't), pin weight is still considered weight put ON the HITCH only.
One good point made by RCMAN46 was that possibly the OP weighed with slider hitch in back position...Definitely would skew the weight readings on front and rear axles, though Gross weight would remain the same.
Sorry, disagree, NC Hauler.
If I am reading it right, you are saying ONLY the wt increase on the rear axle counts as pin wt? I disagree. Say rear axle wt went up 2,000#, and front axle wt went up 1000# when you hooked up a trailer. You say the pin wt is 2,000#?
I disagree. Take the trailer off, put a bar up to the king pin, and put that on a scale. The pin wt will be 3,000#. Pin wt is the wt on the pin, total wt. Not just that which goes on the rear axle.
If one put the same trailer on a truck with the hitch farther back, and the front axle stays the same, the rear axle will go up 3,000#.
Does the SAME TRAILER have a 2,000# pin wt on one truck, but a 3,000# pin wt. on another?
