Is it a 1996 4l60E?

[AuroraGirl]

Sooooooo, 2wd, 1996, and transmission has no reverse per what my dad says, after it may a loud ping. I take that to mean that something broke , but either way, he got a PWM 4l60e for free, and checking it out, it appears okay generally, the fluid id not terribly dark red.
And so because its a 1 piece case, PWM on the pump cover, IM lead to believe its 1995-1997/8

The tailshaft matches a 95 96 4 bolt 2wd half ton tail shaft. The green connector on the trans has 13 pins, which is whats got me unsure, and the tailshaft has a speed sensor on the passenger side



Does this seem right?

 

[stutaeng]

Sounds like it, yes. Those have "PWM" on the pump side you can see if you remove the torque converter.

Also, there's a number somewhere near the pan rail that will tell you the year, in case that year tag is missing.

 

[AuroraGirl]

Sounds like it, yes. Those have "PWM" on the pump side you can see if you remove the torque converter.

Also, there's a number somewhere near the pan rail that will tell you the year, in case that year tag is missing.

I have searched for a decoding of that, and I keep hitting dead ends, what is the decode? plus 1995 production trans could be 1996 id assume.

And I forgto to mention, there was no tag. there was a rectangular place that looks like the tag was meant to be.

the PWM as I mentioned yes was on the cover

 

[stutaeng]

I've posted this video before. He talks and shows that ID on the pan rail. I hope this helps.

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[tayto]

1995 is different internally than 1996 and up. easiest is to determine the pins on the 13pin connector and check resistance on the 3-2 solenoid as it was PWM in 95 and went to on/off arrangement in 96+. i have never swapped a 96 valve body into a 95, so i am unsure if it would work. but i have blocked the 3-2 valve and plugged the correct solenoid in to keep the CEL off. if it were me i would get the VB vac tested and replace/repair common areas that wear out/leak. there are a bunch of free & cheap mods you can do to get some more life out of these used units.

GM 4L60-E Valve Body Identification Guide | Sonnax

How to identify 4L60-E, 4L65-E and 4L70-E transmission valve bodies by looking at solenoid, manual valve and casting differences.

www.sonnax.com