ah64id wrote:
But still at least 980lbs under the weight your brakes where designed to stop.
As I mentioned, brakes are designed for GVWR+ the 2,000lb trailer than you can tow without brakes.
I don't know about that. My owners manual has a much lower number.
"CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances."
That doesn't give me much confidence that the brakes were designed to effectively stop that weight. Using your logic, I would have essentially 9600lbs of effective braking effort for my truck. If I disabled my front brakes, I'd still have 5900lbs of braking effort from the rear axle alone. My unloaded vehicle weight is 5540lbs. That means I still have 360lbs of braking effort left in my unloaded vehicle. I should be able to maintain an adequate level of braking performance level right since I have lbs of effort to spare right? I'd be interested to see how the truck would stop from 60mph with the front brakes disabled. He's a hint. If I survive, I'd end up in some lawsuit and maybe have some prison time.
What JIMNLIN is saying makes sense. With the combination of axles, I have 7600lbs of braking effort between the axles. If I disabled my front brakes, I now only have 3900lbs of effort. The rear axles is now using 3900lbs of effort to stop 5540lbs of truck. The rear axle braking effort will eventually stop the truck, but no where near in the same amount of distance.