[48cj2a]

I knew what you mean't and was referring to you not knowing what T/C was in the 91 donor.

I've been scouring the net since posting to throw you a bone. Pretty hard to find parts but here are some adapter conversion options:

Advance Adapters: http://advanceadapters.com/downloads/50-0410.pdf

Summit lists: http://www.summitracing.com/parts/add-50-0410/overview/

PolyPerformance: http://www.polyperformance.com/shop/...t-p-20755.html

Northwestfab: http://www.northwestfab.com/GM-4L80E...ter_p_273.html

Northwestfab: http://www.northwestfab.com/4l80E-to...pter_p_98.html