Originally Posted by santacruzer
I have the '09 TRD double cab...
As son as I can get to one of those CAT scales I'm going to get some front axle weights with and without the trailer hooked up.
I always encourage people to check their weight, but in this case you might not need a scale... as long as you know the tongue weight and have a tape measure.
- Measure from the rear axle line to the ball, and divide that number by the wheelbase; for instance, the distance to the ball might be about 50" or 1300 mm, and the wheelbase will be 140.9" or 3,579 mm if it is a long-box, giving about 0.36 or 36%
- Multiply the tongue weight by that fraction, and that's how much load will be taken off the front axle; for instance, 36% of a 300 pound (136 kg) tongue weight is 108 pounds (49 kg).
It's a leverage thing: the rear axle is the pivot point, and the ball and front axle are the two ends of the lever.
You need an idea of the front axle load to put this in perspective, and you do need a scale for that (although it's going to be something around 3000 lb), but you can calculate the change