I need some help with my Allison swap I’m trying to figure out if the np205 from a 85-91 gm has the provision for the Speedo like the dodge np205 out of a electronic 91.5 truck I deleted the pcm so it’s wired directly to the Speedo

 

Up thu '90 GM 205, the dodge VSS gadget should swap over, as they are both mechanical drive.

'91 GM 205 is different - it's a native electric pickup ring like a later np241.

 

Thank you

 

Yes. Most NP205 parts are interchangeable .