Is This a C6 Crank Spacer or E4OD?

[bulletpruf]

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I'm going through stuff in my garage to catalog and sell and I've had a few different engines, so not sure which one this came from. I'm pretty sure the C6 and the E4OD transmissions used different spacers; does anyone recognize this one?

Thanks

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[IDIBRONCO]

The C6 didn't use a spacer like that one.

 

[nelstomlinson]

That looks a whole lot like one I just pulled off the crank of an IDI that had an e4od behind it.

 

[hacked89]

The C6 didn't use a spacer like that one.

X2 I had one c6 IDI and it didn’t have a spacer

 

[bulletpruf]

Someone in one of the IDI Facebook groups said it depends on the flexplate -- the C6 with the thin flexplate uses this, too. Thanks

 

[IDIBRONCO]

I won't say that it's wrong, but I don't remember seeing thin flexplates with a C6. Only the E4ODs.

 

[trackspeeder]

C6 and early E4 used a flex/flywheel, so no spacer needed.
This spacer is used for the stamped flex plate on 93-94 E4OD.

 

[Noiseydiesel]

Mine is around here somewhere. . . .
E4OD spacer.
The Allison kit had another one in it, different sized.