Help ID'ing this 4L80e?
 

Besides the fact it's dirty!

I know there's small nuances different between the years, just wondering if those with a sharp eye had any info on it. I was told it was behind a SBC in a "street rod" - but given the level of dust on it, maybe it was a street rod in need of a restoration.

I had read the "earlier years" had the cooling lines on the side?

http://i198.photobucket.com/albums/a...0/P1000760.jpg

http://i198.photobucket.com/albums/a...0/P1000762.jpg

http://i198.photobucket.com/albums/a...0/P1000763.jpg

http://i198.photobucket.com/albums/a...0/P1000764.jpg

http://i198.photobucket.com/albums/a...0/P1000765.jpg

http://i198.photobucket.com/albums/a...0/P1000766.jpg

97+ 4l80E have the cooler fittings seperated. One near the bellhousing and one near the tailshaft end.

Is there a benefit/drawback to the relocated cooler fittings? So it's somewhere in the 91-96 range most likely?

IIRC Better Cooling/Lubrication. But 2000+ Years had stronger hard parts etc... That's what you really want just. Add a TransGo and have a pretty damn strong trans for just a shift kit.

It's a 1993. The yellow tag on the side says 93. Plus it still has the old style electrical connector.

yep, the tag says 93

I assume a Speartech adapter has a model for both style plugs?

Not likely, just update the solenoids/internal harness to the new style.

I'd personally just get a 2000+ 4l80e much easier I'd say plus updated/stronger internals. Why not just sell the 93 Trans?

Actually the early style units have a better OD sprag design, and all the" improvements" didn't seem to help from what I've seen tearing down hundreds of cores.

I won't fight you on that! You are the expert. That's just what I've been told a million times :)

I don't have a problem using any year model core, on big power builds I always use the early OD parts even on a late unit.

The improvements GM did seem like a good idea but in practical application I haven't seen any real difference.

I agree with this statement the only issue I have seen is on the first or second years of this unit. The OD planet in some cases does not have any lube slots in the planets spline area. Also I ran into an issue with the input shaft not fitting into the later assemblies. For what I could tell the first year of shaft and planet assemblies were just a bit different and I had an issue with getting the snap ring on when swaping stuff around. I would make sure to use an OD planet with at least two slots in the planet for any unit in my opinion. Vince