they mount the same except there are two bulbs instead of one, so u need someone who can wire them correctly, one is high beam one is low beam, also, the grill bracket on non-sport models is different than the sport grill bracket, you can modify the original and use some zip-ties to hold it on, or just get a new one from somewhere, other than that it bolts right up
Another thing about the headlights you will need to cut the inner fender. The sport headlights have 2 sets of bulbs and require the cutting of the fender. If you look in my gallery I did the installation of the sport headlights on my 94. Its a pretty simple job i just didnt hook up the inner bulbs because i only wanted the clear look of the sports. Another thing is that the sports use a 9007 bulb for the low beam and non sports have a 9004 so you will have to modify the socket of the headlight to fit the 9004 no biggie though.
on my '01 i didnt have to modify anything for the lights to fit, something must have changed on the trucks after '99, we had to make an entirely separate harness for the new lights b/c the stock wiring kept shorting out so we wired the new harness to the factory switch,im running all four lights on low beam and wired all four for high beam as well, also be very careful as to what wattage bulbs you put in, 80/100w bulbs will burn the after market and stock lights, you gotta use 50/60w bulbs which will still give you good lighting