Well i have recently replaced the fuel pump on my 96 GT, and i do beleive that is set up exactly the same as the 98. So that being said yes it is very easy, it will take a little while to do but is not hard. The thing i had the most trouble with was dissconnecting the fuel lines and getting the filler neck out of the tank, it just pulls out hard but it does pull out, and i had a well layer of rubber and dust under it so it was like working in a sand pit, so i would suggest washing under it very well first and letting it dry then going at it..... hope that helps