Hello again Marauderers tech experts, I ask myself what needs a transmission to make it Hard, stronger and last longer and that's why I called to this thread with the title using the description for " BULLETPROOF" which will need a transmission 4R70W/4R75W in mods to make it last longer and very stronger, so I have plans when I did the Overhaul of the BP74i Panther transmission to make several mods so suggestions, advices will be welcome to this thread and for future references to other future newbies to look for information about what to do at the time to modify a 4R70/4R75W transmissions, Marauderers for the time to read and contribute to this thread.