Re: 4L80E & TH400 Tech.
4L80E Separator Plate hole sizes. This unit is kinda picky about clutch feed hole sizes & don't need to be as big as a TH400.
If your running a stronger Pressure Regulator spring or a larger Boost valve (Or both)....Be conservative on feed hole sizes.....Mainly 2nd to keep from shocking the Intermediate sprag.
"Stall" Of the converter has a huge effect on shift feel....The Looser the converter...The softer the shifts will feel, Meaning you can run bigger holes.
Using a stock converter....Again, Be Conservative!
2nd Feed Hole, .085" to .125"
3rd Feed Hole, .093 to .150"
4th Feed Hole, .085 to .093"
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