It'll fit but you'll have to do some extra work.
The bed bolts will be a little different, the 89-94 doesnt use captured nuts on the bed so most companies send standard thread nuts and bolts. You'll need to buy new 3" longer bolts with your present thread pattern.
The rear bumper lift plates fit nicely, no drilling required, but the bumper should not be used to tow with.
We installed a kit for a 94 Toyota on a 04 Tacoma a few weeks back, even with a run for parts it took 3 people 5 hours.