My car wont move while in drive but it will reverse fine? on 1997 Ford Mustang

i already changed the gasket to my fuel pan and changed my filter and put new transmission fluid in it. When put in Drive wont take off unless i get up to 3000rpm but when stopping wont go again. reverse works fine. what is the problem (1997 ford mustang V6 3.8)

Asked by for the 1997 Ford Mustang
sounds like the clutches are bad in the transmission. Take it to a transmission shop for a proper diag.
1 more answer
maybe you have a transmission problem