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Old 06-26-2008, 06:34 PM   #1
64Magoo
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TH400 in my 64?

I want to swap my saginaw 3 speed out with a TH400 I have in my '89 K2500 and was just wondering what would be involved in doing this? I don't know if it would be the same as putting in a TH350 or not.
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Old 06-26-2008, 07:26 PM   #2
BLE 'BURBAN
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Re: TH400 in my 64?

TH350 has a mechanical kickdown cable as where the TH400 has an electric kickdown with an actuator switch mounted on the accelerator pedal bracket. Although on your '89 with the E.F.I. it's controlled by the computer via the t.p.s. I have an old accelerator bracket with the switch and wiring for it here somewheres.
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