I'm going to be removing the trans pan to change fluid and filter. Although the trans was rebuilt a few years ago, I'm getting some chattering between 1 - 2 shift, along with a slight delay when going into forward and reverse. While I'm in there I plan to replace the reducer bushing and do the Transgo shift kit. Besides knowing where things go and keeping the valve body clean, is there anything else I need to watch for? FWIW, this isn't my fist shift kit install, but I've not done one on the 42RLE.
https://transgo.com/product-details/604-reducer-bushing/
https://transgo.com/product-details/604-shift-kit/
https://transgo.com/product-details/604-reducer-bushing/
https://transgo.com/product-details/604-shift-kit/