is this a stock tranny cooler

[BigBlockSam]

 my 69 charger se came with this tranny cooler . is it stock? my 68 charger r/t does not have this type   

[ws23rt]

My guess is it is not stock.   The ones I am used to are different.
My HemiRR had one (68). It would be interesting to know what other car/engine combos had them.

[tan top]

 think  only  Hemi autos had them  ,    

[Just 6T9 CHGR]

think  only  Hemi autos had them  ,    

The one you have pictured looks like a B& M stacked plate style cooler (great unit, I am running the same)

Correct....this is a Hemi auto trans cooler

[BigBlockSam]

thanks guys , i guess it was added when the previous owner took the 318 out and put the bigblock in . the way it is mounted and plumped looks very factory .