Is the gas a V8 or a V10 ?
If it is a V10 the answer is def. no their is no difference cuz the trans for the V10 is the same trans as the Diesel it is the 47RH.
If was a 360 V8 you may have a problem but im not possitive. Check to see what transmission is in it and give a transmission shop a call if they dont want to help you keep trying until you get a answer.