jmtandem wrote:
I suspect that his Dad's truck will be much more stable towing since it is 5 inches lower and therefore the problem is most likely the OPs truck with lift and oversized tires.
Pretty well known that lifted vehicles with oversized tires tend to not make for as good of a towing rig.. This is where "Boulevard Queens" are more for looks.. Rather than heavy work..
Somewhere along the way the OP said that he tows other trailers with his truck and they tow fine. I suspect the problem is with the trailer and it would be easy to figure that out with using his dad's truck for a short tow.
It is entirely possible that the OP's truck could tow other trailers perfectly fine BUT not tow the trailer in question without problems due to the design of the trailer. This particular trailer design may have a higher center of gravity (COG) and or more rearward center of gravity (COG) which places a lot more dynamic weight higher in the air and further back towards the axles of said trailer..
Add in a lifted truck (5" of lift) and larger diameter tires which also creates a truck with a much higher center of gravity and you now have the "perfect storm" for a very unstable combination..
Center of gravity is pretty tricky and most likely is the issue..
I suspect the OP's Dads truck (IE no lift and standard tires) towing this trailer will result in a much more stable tow..
