Okay I need to know if the 03 tranny needs the Friction Modifier when I do the tranny fluid replacement. I will be replacing it with the stock Mopar+4. Just need to know if it needs fm. thanks in advance.
Original thread person is talking about the additional 4 ounces of friction modifier required for use with the LSD in the 04 (and retrofitted 03) transmissions.haljensen1 said:Doesn't the Mopar ATF+4 include a friction modifier? The Shop Foreman at my dealer showed me a syncro ring from the tranny that had a special surface facing on the inside of the syncro ring. He said that surface was was designed to slip then grab and required the friction modifier to function correctly.