4L60 Check ball on input shaft
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From: On the coast of somewhere
4L60 Check ball on input shaft Can that check ball be removed without consequence? Not a builder obviously but, heard of others removing the ball for more of a firmer converter lock-up on other types of GM overdrives. Or am I totally off base on this? Any benefit other than firm lock-up?
Yes you can remove it and it will cause a firmer lockup apply and this is not and issue.
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It will make the lockup more like a gear shift. I "do not" recommend taking it out, as the 1995 and up capsules are a "dual feed" setup as compared to the "single feed" of the 1994 & earlier units. The dual feed is fine, and it you want it a little frimer, drill the feed hole in the separator plate to .093" as recommended by TransGo. Use the Isolator valve from TransGo as this will make the lockup an on/off setup. These two recommendations will help torque converter clutch life more than anything, without the torque converter lockup becoming annoying.
