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Yes it will fit. But this is what you will need to make it run RIGHT. You will need the complete engine,transmission and fuel pump wiring harness. The computer and the transmission plus the electric fuel pump. And all of these things MUST come from the 97 truck and be installed in the 90 truck are you will never get the engine running. You will also need the oxygen sensors out of the exhaust system on the 97 it has 2 of them and the 90 model has 1.

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12y ago

What else can I help you with?