pendulum of death ...trailer guru needed !!
#1
Registered
Thread Starter
Join Date: Dec 2002
Location: Friendsville PA
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
pendulum of death ...trailer guru needed !!
:triple axle venture, just put all new bushings , tires and aligned it...towing with a 2500hd duramax and like the title says ...she swings alot sometimes pretty big...im guessing maybe the wheel set needs to go back farther ?? hauling a scarab thunder w twin 454 aprox 8500lbs fyi i drive a semi for a living... thoughts ??
#2
Platinum Member
Platinum Member
iTrader: (6)
Sounds like its trying to tricycle on ya, maybe a little more tongue weight ??.......
#5
Take your loaded rig to a scale and get us 2 weights:
1) Total of boat on scale which hitched to truck. (trailer axles on scale, truck completely off of scale)
2) Drop the tongue jack on the scale, and lift the weight of the trailer completely off the ball. (entire weight of your towed load)
If you want to go even further, get individual truck axle weights too, when hitched to the boat, and then leave the boat in the lot and go back with just the truck only.
Before you do any of the above, make sure you have a hitch drawbar that makes the trailer sit level. Check with a level on the trailer frame rail.
As mentioned, I too suspect you have too little tongue weight. You may be able to adjust my moving the boat on the trailer, or you may have to shift the axles.
Most concerning: what kind of trailer brakes do you have? If you have a surge brake coupler; this mis-balance of weight distribution is going to really make an emergency braking situation, sketchy, in a hurry; if not worse.
EoH is ALWAYS a smart upgrade (if you don't have it already), unless you are pulling a 20 Baja with a 1-ton. (facetiously speaking on that last part)
1) Total of boat on scale which hitched to truck. (trailer axles on scale, truck completely off of scale)
2) Drop the tongue jack on the scale, and lift the weight of the trailer completely off the ball. (entire weight of your towed load)
If you want to go even further, get individual truck axle weights too, when hitched to the boat, and then leave the boat in the lot and go back with just the truck only.
Before you do any of the above, make sure you have a hitch drawbar that makes the trailer sit level. Check with a level on the trailer frame rail.
As mentioned, I too suspect you have too little tongue weight. You may be able to adjust my moving the boat on the trailer, or you may have to shift the axles.
Most concerning: what kind of trailer brakes do you have? If you have a surge brake coupler; this mis-balance of weight distribution is going to really make an emergency braking situation, sketchy, in a hurry; if not worse.
EoH is ALWAYS a smart upgrade (if you don't have it already), unless you are pulling a 20 Baja with a 1-ton. (facetiously speaking on that last part)
Last edited by Sydwayz; 09-26-2016 at 03:30 PM. Reason: fixed type
#7
You are right, thanks for pointing that out.
But too much or too little tongue weight will make for a terrible towing experience.
Too much provides lift on the front of the tow vehicle making it very hard to control, likely understeer.
Too little means you have tail wagging the dog, and the pendulum action of the trailer moves the truck all over the place, sometimes even lifting the rear axle of the tow vehicle.
But too much or too little tongue weight will make for a terrible towing experience.
Too much provides lift on the front of the tow vehicle making it very hard to control, likely understeer.
Too little means you have tail wagging the dog, and the pendulum action of the trailer moves the truck all over the place, sometimes even lifting the rear axle of the tow vehicle.
#10
Registered
Join Date: Jan 2004
Location: Saint Petersburg Fl
Posts: 1,571
Likes: 0
Received 0 Likes
on
0 Posts
Like everyone above says, sounds like a case of too little tongue weight to me. Somewhere I have a goofy tongue weight digram whe you can use a bathroom scale to measure it if you can estimate the total towed weight. 5-10% is the goal .