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Got the 3.4 engine into my 1993 T100 where the old 3.0 once rested. I have the A340F automatic transmission and did not peform any auto tran swap. Going to take my chances in this regard.

Anyway, the engine runs fine, but I cannot get the trans to shift from the first gear. I have the donor computer, wiring harness and the ORS adapters. The ORS harness however, does not help me with the tranny harness and I had to slice and alter a couple of plugs (with electrical diagrams of both the donor vehcile and the original vehicle). My question is this, does the transmission shift by electronical means or by mechanical means? Does the "kick down" cable (the one right besides the throttle cable) control any of this?

Any help at all would be appreciated.