I'm committed (in more ways than one)

Got the junkyard 4L60e off the furniture dolly and up on the "Sherlock" modified chair. Pulled the pan, NO debris. Other than what my brother generated when he cut the dipstick tube on half. Has the usual Pick N Pull ventilated pan, so there's a new one sitting next to the rollaway in the living room.

Will post photos soon.

Anyone know how to remove a recalcitrant 2-4 servo cover? Water pump pliers wont rotate it, screwdrivers won't pry it. I'm about ready to drill holes in it and use a slide hammer...I've got a spare.

Use a hammer and gently (but firmly) tap it in to help break the corrosion seal along with some penetrating fluid (WD40, Kroil, etc) to help loosen it up.

Tried that, no bueno. Maybe I need bigger grippier slip joint pliers. They're in the rear seat well. I'll let you know what happens.

Well, it's out...drilled two holes and ran a couple #10 screws in... pulled the cover right out. O-ring was beyond saving, broke in half immediately when hooked with pick.



But it's also really sloppy inside. The pin wiggles in the piston a bit too much...so after all this work, I gotta buy a new one anyways.

Grrrrrr.

Here's that annoying front planetary with the tiny circlip that won't come off...the shaft being splined doesn't help. Anybody have any tricks?



Parts and work space...

Strapped to the Sherlock Chair...



Did figure out between Sunday and Tuesday how to get that tricky yellow snap ring out...more shortly along with other questions.

Okay, got the snap ring out...took a couple of YouTube videos and 3 days of swearing. But when I figured it out, like butter.

Got some questions on wear parts...pump slide, looks like chatter marks. Should I replace?



Pump body...the surface is smooth, no catch fingernail...



Rear sprag inside...



Comments, suggestions?

I'm also having problems with reassembling the valve body...things got moved and there may have been a mixup with springs...is there anywhere that has measurements of length and diameter? Really having a problem with the 4-3 valve...the two pistons fit, but when the spring is added, I can't compress with an inch of getting the cap on?

Okay, I fixed the 4-3 valve problem by getting a spare valve body from the local wrecking yard...it was a much shorter and softer spring. Worked a dream.

Now, can I use a later (1998 up) internal wiring harness in my 1994 transmission? Most wiring harnesses I see for sale don't specify a year...it does have the extra pin in the main plug, but can I just ignore that, or remove it?

Thanks for any assistance.

Sorry bro, I'd help if I could, but I'm in the same boat as you ( never rebuilt a trans).

not a real transmission person myself, but I'm pretty sure that soft springs in the valve body would give a soft gentle less noticeable shift while a stiffer stronger spring might give a more aggressive noticeable shift, or it might be the opposite.

Also with valve body parts from a junkyard tranny I would be worried about how used they are, and personally, if I don't like how a part looks even if it could still be good I tend to replace it but keep the old part just incase as a backup.

goldwolfnhn - soft springs don't necessarily mean soft shifts. It all depends on the circuit and what's on the other side of the spool (valve). If it's line pressure, a softer spring will make it shift harder whereas a stiffer spring will slow it down and shift softer.

Hey, just got back from a very long road trip. In the 4L60E, softer springs always mean softer shifts except for the 2nd accumulator. If you put those springs as they are from the factory, between the piston and the accumulator, a stronger spring provides less of an initial starting position for the piston. This will make it more likely to bottom out under hard shifts and cause a "slide-bump" shift. The remedy is to move the spring to the other side of the piston (against the plate), or shim the accumulator regulator valve to slow the release of accumulator oil, firming up the 1-2 and 3-4 shifts.

I can't see your pics at work but I'll take a look when I get home.