Severe wheel hop with new locker

[sav300]

I just finished a trans swap in my 70 3/4 ton and while I was at it I installed a detroit locker. Before the locker I could punch it, spin both most of the time, and not have any issues with wheel hop. Now when I do, it will hop extremely bad. Any clue as to why it's changed so much??

Here are the specs incase you need them:

3/4 ton with factory suspension
4L80E trans w/4000rpm stall
355 SB w/413HP
HO72 w/4.10s and locker
Weight is 3860lbs
LWB
32" street tires

This is my street/strip pickup and I am trying to get everything in oder to take it to the strip. This week I am getting new tires, but I would like advice on which shocks to get. Its about 80/20 street/strip.

Thanks,
Thomas