55.2-59 Wheel hop under braking

[Curt C]

Tried search. Most posts are about wheel hop under acceleration. I get some pretty good hop under hard braking: 1956 Studebaker (I know not a Chevy but suspension dynamics should be similar). Ford nine inch out of an older Mustang with original leaf springs and drum brakes. Front clip is from a 1977 AMC Matador (nutty) with disc brakes. Chevy 350 with Turbo 350. New shocks front and rear and brakes have been gone through and are in good working order. Leaf shackles and bushings look good.

I assume most of the weight is shifting forward and unloading the rear. Tires thus can lock up easier and start hopping. Without having to completely re-engineer the suspension, what are some basic fixes? I have read a bit about clamping the leafs and using sliders in lieu of shackles. Thoughts? Some say add weight to rear but it needs to be a good bit. How much and how? I would prefer not having to stiffen up the front.

The truck drives and stops reasonably well. But if it needs to stop quickly at highway speeds its going to go for a ride. Thanks for the responses.