Replacement Stepper Drives for Replicator Dual Extruder

I recently blew out both extruder motor stepper drives on my Makerbot Replicator Dual Stepstruder. I won't go into the reasons why but wanted to show my repair.

I don't think Makerbot sells parts for this unit (at least doesn't show them on their web site. I didn't call and ask) but would expect them to be quite expensive if they did.

I knew the stepper drive was blown when the stepper motor would just jitter back a forth a single step and the circuit board was extremely hot.

I replaced