Caltracs vs Slide A link Vs SS springs

i need to raise my rear so i can fit my tires, but i also want the best traction i can get. Will using cal tracs or slide a link help me fit my rear tire under the car? If not im guessing i should just go SS. Also i heard of people making their own slide a link and caltracs. How do i do this? home made Slide a link looks alot easier to make so please help im TOTALY open with this one when it comes to any info