i put 2 inch lift blocks in the rear of my 1999 taco and i need new shocks. what size shocks are recomended?

 

Blocks =

But seriously..You need to measure the length from the mounts at full compression and full droop, then buy shocks accordingly..
Pretty sure Bilstien, rancho, monroe, OME have measurements on their respected sites..

So do some reading and some measuring..