Originally Posted by handogg

I don't mean to bother anyone.. I only want to update that the transmission is shifting perfectly with the exception of full throttle from a complete stop.

When the car is stopped and then I give it a full throttle, there is a very noticeable thunk or clunk as it takes off. Apart from that, the car shifts seemingly perfect...

Originally Posted by Striker223

Thats driveline mounts most likely

Originally Posted by handogg

I realize there are other threads on this but this case might be a little different.
2008 LS460L
209,000 miles
No maintenance history on Carfax or Lexus

The transmission shifting quality is about 8/10. About 80% of the time, the car shifts normally. 20% of the time it's a little hard to explain other than saying the car shifts a bit rough.. or not at the normal time with there being a little delay..
When going from P to R, it takes about a half second and then goes hard. It;s the same when going into D.
When flooring the car from zero, there's a VERY SLIGHT clunk I can feel in the pedal just before taking off and shifting normally.
Transmission used to slip and roll very rarely but that seems to have stopped recently. I'm not sure why.

I have 6 quarts on the way,.. should i flush out 6 quarts or all 10.6 ??
or if I should drain and fill.
or if I should just leave it alone..

Assuming the transmission were to be destroyed my plan would be to sell the car as is or replace the transmission w/ a junk yard donor. How hard can it be if teenagers on youtube can do it ?

Thoughts ??