[iaintscared1969]

Output shaft would need changing eitherway you went yota or NP203. Save yourself the headache and have a tranny shop do it. Unless you have torn apart a 4L60E of which has about 80 parts to it, it eats up time and that way if it doesn't work when it goes together the tranny shop will get to fix it! And get a TCI upgrade kit for the tranny while you are at it! Also depending on your oil pan there is a tab on the Pass. side right near the oil level sensor. Trim that down so it will give you a little more clearance and put a plug where the sensor used to be. Also plan on fabbing up a tranny mount like I do on mine. Your old one will not work. Don't forget to pick ouot a new shifter! One more thing is driveline work. Just more useless info for ya!