I need Vortec swap help

[petesdad]

I have 1967 GMC short bed on a 1972 C10 leaf spring frame and a 2003 Vortec 4.8L and a 4L60e Tran.. I did not get the pedal and TAC module with the motor. I have a junkyard close but I'm not sure which one to get. My motor has green/blue connectors on the ECU so I know it's 2003. If I can get a Tac module # it would be very helpful.
Did see on ltlswap.com that Tac# 12573058 or #12588923 would work but all I see at the junkyard are #12573059.
Somebody help I'm ready to drive this thing.

[hugger6933]

Those TAC modules are a booger, they changed the service number about every year. I have never heard of telling what year model the wiring is by the PCM connectors but ok I'm sure thats a thing. I know some I see are red and blue, I think the 04 model I just did was red and blue. But I don't pay much attention to that sort of thing. I have been told that you really don't need to mix and match that TAC stuff so I try to keep my pedals with the tac's when I junk one out.to avoid confusion. Jim

[petesdad]

I got it. Thanks for the help