Is there such a thing as a gm 10 bolt, 6 lug, but its a 3/4 ton. i am in the middle of putting a 6 inch suspension lift on my 90 jimmy, but items such as tie rod across the front only matches up with 3/4 ton listings. and when i dropped the rear axle for the spring install, the u-bolts were too small. the axle tubes measure 3 1/8" but the 1/2 ton u-bolts are 2 3/4". anyone else come across this?