Dealer says it's most likely the Transmission Clutch. I am pretty close to having New Transmission as I have just completed New Turbos with Garrett Stage 2, All parts CAI, AMS and Mishimoto Intercooler pipes , Blow off Valve New, New Manifold , New Downpipes and full AWE exhaust, New Rotors and pads, New Tires BF Goodrich , New Front and Rear Shocks Fox, I had Phasers and water pump done , few other . Needless to say I plan on driving for while I love Gen 2 truck I have. I added new Stereo and multiple Rigid , cubes , Bars and Baja Rear cubes for tailgaters ? So although dealer quote is 9k installed comes 3 year warranty unlimited miles? most upsetting is only few payments left. Oh all new Sway bars and RPG Tie Rods, Upper control,offset Rims. I was hoping trans would last longer but this is what is? Has anyone gone with a performance Transmission? What better would a performance Transmission be? and would I get a warranty? With the truck all built if Dealer puts a brand new Ford 10R80 with 3 year warranty it seems like my best option. I'm seeing 7k and up for Performance Transmission and if I have issues then what?