my first yota was a 96 taco std cab 4x4, i shattered the left leaf spring being retarded. did some research and found out toyota made a little error and used a 3 leaf style springs for the rear end for the gen1 tacos, they upgraded the springs to a 4 leaf style for the gen 2+.
i currently have a 98 Taco ext cab 4x4, with too many performance mods to start listing, i am currently needing to replace my now "s" shaped shot leafs. and i am going to get the wheeler springs as a replacement. i have a 3" fabtech lift sitting on 33x12.50r15's. as far as the shocks go, if you get the fabtech lift it comes with really good shocks, if you go on w/o a lift just get bilstine shocks.
i would highly suggest getting the 5 leaf pack with overload spring. and installing them is very easy, just get all new hardware (bolts, bushings, etc) i am a firm believer in spend a lot now or spend a lot later. and since you are going to be down there anyways you might as well replace it, will run you like $150 more but your rear suspension will be all new.
just a note if you haven't replaced leaf springs before, do one side a time or you will end up wasting time keeping the axle aligned and trying to get the eyes to line up. total just with replacing everything should be around 2-3hrs at most with or w/o the shocks. oh one last note, get the greasable shackle and eye bolt kits, will save you in the long haul.
hope this answers your question, and if you have checked the yota dealership you will find they want like 450-500 bucks a side so 500 for a better set of springs is a really good deal. makes for good leverage in tell the wife why you spent that little extra replacing rusted up worn parts
