Hello y'all, I am going to be building my 4R70W soon and want to ask some questions. First let me tell you what I have: 96 F150 2wd with a 351. The motor is nothing crazy, stock bottom end with a 85-88 Mustang HO cam, roller rockers, Explorer P-heads, shorty headers, Lightning intake. I had Dityd0g build me a 12" converter with alittle stall speed increase, but it is not in there yet. The truck is my daily driver, but NOT a work truck. Weight is 4310 lbs. with me in it. 3.73 gears with 28.5" tires. I will be building the transmission with all the best internals that I know of. Diode sprag, 98-02 clutches, removed wave plate, 5.4 gears (if I find them in time) 98+ accumulator pistons. ~~~~~ OK what I need to know about is the valve body, separator plate modifications, and accumulator springs. ~~~~~ I want the trany to shift factory smooth on light throttle, slightly firm at heavy throttle, and chirp tires at WOT. What is the best way to achive this?