rbev2308
07-18-2013, 11:53 AM
First off, I have researched this on various areas of the forum and have a decent grasp of how this works. Looking for some advice. I am upgrading my F-150 to a F350 Diesel (2013, 3:55 gears, 11500 GVWR, RAWR 7000). I know
for a fact the truck weighs 7700 lbs. Empty Rear Axle weight is 3100. Payload consisting of adults and big As* dog (200lbs) puts it at 1,000 lbs, factor in full tank and 200lbs or so on the hitch, I am at approx 8900 lbs (truck had 1/4 tank when weighed). With that, GVWR would probably be reached before RAWR. I have 2600lbs to play with and most of the Fifth Wheels I am looking at come in between 1900-2200 lbs Hitch wt (Empty) or between 18-21% of the total dry weight. My question comes in with respect to the payload of the trailer itself. If it has a capacity of say 2,000 lbs, and you equally balance that load, how does it affect the hitch weight. If the trailers empty hitch weight is 20% of the total dry weight and you add 1,000 lbs, do you add 200 lbs or 20% to that hitch weight? Would not seem logical to say adding half of the cargo weight to the hitch. Yes, the overall weight of the trailer is still within the GCW of both truck and trailer. Just do not want to blow a suspension in my truck. I don't want to "nuke" this math but want to feel comfortable. A Dually is not an option and I would like better understand how pin weight is calculated when adding cargo. I am also mindful of DOT as they may simply look at GVWR of 5th Wheel and truck and if it goes over the GCW, give you a ration of crap. I know this may be an old regurgitated topic that others have had. I honestly understand and buy off on the weights. Just hung up on this pin weight calculation
for a fact the truck weighs 7700 lbs. Empty Rear Axle weight is 3100. Payload consisting of adults and big As* dog (200lbs) puts it at 1,000 lbs, factor in full tank and 200lbs or so on the hitch, I am at approx 8900 lbs (truck had 1/4 tank when weighed). With that, GVWR would probably be reached before RAWR. I have 2600lbs to play with and most of the Fifth Wheels I am looking at come in between 1900-2200 lbs Hitch wt (Empty) or between 18-21% of the total dry weight. My question comes in with respect to the payload of the trailer itself. If it has a capacity of say 2,000 lbs, and you equally balance that load, how does it affect the hitch weight. If the trailers empty hitch weight is 20% of the total dry weight and you add 1,000 lbs, do you add 200 lbs or 20% to that hitch weight? Would not seem logical to say adding half of the cargo weight to the hitch. Yes, the overall weight of the trailer is still within the GCW of both truck and trailer. Just do not want to blow a suspension in my truck. I don't want to "nuke" this math but want to feel comfortable. A Dually is not an option and I would like better understand how pin weight is calculated when adding cargo. I am also mindful of DOT as they may simply look at GVWR of 5th Wheel and truck and if it goes over the GCW, give you a ration of crap. I know this may be an old regurgitated topic that others have had. I honestly understand and buy off on the weights. Just hung up on this pin weight calculation