I have a 727 small block trans with the number
PK3410691.I can't find this number in any of my parts books.Does anyone know what this trans came out of?
Thanks Bob

no idea... are you sure of the number? its a 70 trans # anyway dan

These are transmission assembly PNs for 1970 small blocks:
3410637(318 standard) 904
3410767(318 police/taxi) 727
3410768(318 standard) 727
3410769(340) 727
2914760(318) 727 truck
2953738(318) 727 compact truck
2914755(318) 727 super compact

Are you sure of the number? It doesn't show up in the Chrysler field service manual.

I will check again to make sure.It is still in the car and tough to see.

probably 769L and you see it as a 1 hence 691 dan

I just checked again(after a good cleaning)and found this number 3410 69L.It looks as though the 7 was not stamped and the L appeared to be a 1.Thanks Dan,you figured it out. What do you think the L stands for?
Thanks Bob