Hey Guys I'm pretty new here, just got my 88 runner not to long ago. I'm running 63" chevy springs in the rear and all pro 4" ruf swap ...I have a block in the rear to level it out but I'm wanting to not use blocks ...thinking about using chevy lift springs but was unsure what size I should get, 4"? 5"? maybe 5" and take a couple leafs out? let me know please