The only thing I am sure about is the superlift 7035r rears I'm not sure about the front but they are 2 1/2 wide. I know it's a solid axle but my truck rides like tank and gets out of control on the smallest bumps and has no flex whatsoever , I'm pretty sure they stopped making super lift for the older toyotas but does anyone know how those usually handle ? Maybe I can rule the leaves out and get adjustable shocks for a better ride ? TIA

 

I'm not sure about Superlift's ride, but here's a list of things I would check. Sometimes, you can have a combination of issues. One contributed to the other and now they are both worn out.
Check your leafspring bushings and tie rod ends to start. Move on to your wheel bearings by seeing if you have play in the mounted wheel. Shocks might be worn, but chances are you will have a couple of items that need attention.