Whenever rebuilding a transmission, NEVER do this

[chevybuytroy]

I rebuilt another 4l60e this week, Tore it down and surprisingly had no bad hard parts. All frictions were even good. Except for the 3-4 gears section. It was beyond terrible. I could not figure out wat caused this until I was ready to put on the valve body. Who ever rebuilt it last time put the check balls on the magnet. Big mistake. What it did was magnetized them. I figured it out when putting them back on the seperator plate. Doing this can cause the check balls not to relief pressure like it should and well, burn it up. I changed them out and it is ready to go again.

[Barry Donovan]

terrible excuse.
it is ashame that actually happened.


At 361k, I get a faintly dim ABS light for the speed sensor in the nv3500 rotation...only at a stop.
supercharger sounding whiny bearings must be getting .010 sloppy by now.
now there is only 530k miles left on this original build, dammit.

[fatguyzinc]

EDITED-- read my post and i sounded
like a doink.

whoops sorry. nothing to see here. move along...

[silver_bullet]

thanks for the tip Troy!!!

[TheSilverBuick]

Hmm, I can't remember if I used a magnet or not!

[DanStokes]

MANY years ago when I went to GM tech school on the TH350 (they were new at the time) they taught us to pull the balls with magnet. But that was eons ago and a much simpler trans so that old knowledge is no longer applicable - thanks for the tip (though I haven't done an auto trans is probably 40 years......)

Dan