Wheel Hoping

Replacing the stock shocks should take care of the hop.
stock shocks are weak...

Make sure the quad shocks are still in place, the previous owner may have removed them. Without some expensive lower control arms you will have wheel hop. The quad shocks mount on top of the rear axle and connect horizontally to the chassis . They are much less expensive than a good pair of lower control arms. The auto parts store near you should be able to fix you up for less than $20 a side. A trip to the J/Y will have you fixed up for about $5 a side.