I just picked up one CHEEP and wanted to make sure its the same motor as the older models and will work in my sammi?? It is 2wd, so will the tranny fit (with the little massage on the tunnel) Can I just use the entire wire harness and computer OR can I use a modded harness like the earlier 1600, sorry for all the question just getting exited about getting the motor in the sammy. THanks