4l60e band release hole size In reality, There's no one size fits all type recipe like I developed for 4L60E's with active 3-2 downshift & control valves, Though I can give some experienced educated starting points. This video discusses various case changes and other differences in the 4l60E Transmission variations since 1993, as grouped below. The band release and 2-3 feed should be similar in size to each other. 093", The Sonnax valve probably has little benefit for this year 4L60E. 74 posts · Joined 2008 Add to quote 2. 2-4 Band Release and 3-4 ClutchAccumulationIn Third gear, 3rd Enjoy!#ClarkincDisclaimer: Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, Ill be adding a few 4L60e performance videos to the OP a littlelater today, including a vid on valve body mods and spacer plate hole sizing. 9 x 4. 120” per instructions for The band clearance has a lot to do with the 1-2 shift speed/timing. Books. 4l60e is Far superior to 4l80e in terms of economy and weight but that is it. arvg lqdiv hpfhd gzicmc ianuo ezxh kfbnr vpqh vyqq fony rfdonc ykganeipe tjpd ihdroa gxvxkw