overdrive
Originally Posted by Sotiri
Also, i hear not to kickdown in OD... What is the truth?
TECH Fanatic
Joined: Oct 2003
Posts: 1,132
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From: Grand Rapids, Michigan
Originally Posted by Sotiri
What's with everybody saying not to drive around town in overdrive? Does it really ruin the tranny? Also, i hear not to kickdown in OD... What is the truth?
Dont worry, leave it in OD all the time. Occassionaly will put it in Drive, sometimes to see if it makes a difference. Anywhere youll only use 3 gears-for instance racing some1 to about 120? 1/4 mile maybe? The 4th gear will kick in often especially over 35 i believe, i dont pay much attention anymore.
Staging Lane
Joined: May 2004
Posts: 78
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ive read on this forum that kickdown from fourth instead of 3rd uses a different clutch pack that is alot weaker. also leaving it in 4th will cut shifts short by a 100-300 rpms, put it in d, and ull have no problems
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Posted by James B. in another thread: A 4 to 2 downshift is easier for a 4L60-E to do than a 3-2 downshift. It is a single event of disengaging the 3-4 clutch pack. Downshifting from 3 to 2 has to release the 3-4 clutch pack and engage the band at the same time. There is a valve specifically for doing this just to make sure it doesn't let the engine over-rev trying to pull that off. Keep in mind that mechanically the 4L60-E is only a 2-speed auto with overdrive.
