Interesting info to add...

A manual trans car may be a better car to convert to a glide or 3 speed auto as the manual PCM may be better suited to the auto conversion, because it won't care what's behind the engine. An automatic cars PCM looking for the oem trans communication may cause some issue with engine tuning. Not sure, if anyone has thoughts on this please share.

Additionally from some general web searching, it appears the oem automatic cars come with a 3.06 diff ratio while the manual cars come with a 3.73 (18 inch tires) or a 3.92 (20 inch tires). Either of these manual diff ratios could be used as is for a trans swap. Also, I'm wondering if other pieces in the rear suspension/cradle are factory upgraded to handle the manual trans.