...I have a 2006 supercrew with a 5.7l v8 in the truck.
"23' - 4200lbs Chaparral "
I can't think of any 23 foot Chaparral that will only weigh 4300lbs on its tandem axle trailer.
My 18 foot Chap is a hair shy of 4000lbs on the trailer wet with single axel trailer. 23 footer is generally a lot more than 4200lbs...