22" trailer isn't enough ??
the front axle of your brothers truck is 4000-4500lbs sitting roughly 1/2 between the tandem center and the hitch... which would generate some ~1500-2000lb tongue weight. you where probably very close to 8,000lb gross if not over on the rear axle
moving the truck back till the rear axle was couple inches in front the dove would have leveled the weight better
the trucks will squat quite a bit till all the leaf springs are in play. talking 3-5" depending on how heavy the truck is before you load it... and it you leveled the truck empty and load it hello Cali lean and over loaded look :rofl:
if you really want to know type in your zip code
http://catscale.com/ it will tell you closest scale
first scale is 10.00 second is 2.00 put the
1.front axle on the first pad second axle on the second pad
2.push the "call" button tell them it its first weigh and truck number is "private/personal"
3 park the truck or pull all the way through a fuel island so not to block it..
4 walk in to truck fuel desk give the assistant 10.00
5 let us know how bad you overloaded your rear axle so we can rib you about it