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Discussion Starter · #1 ·
Hey Hutch,
Or anyone else with some knowledge on this.....................
I have a 90 SS 454 truck,
It is not an overdrive, it has a 400 pan but a 700r/350 turbo rear shaft (I think).
I have heard of it being called a "375", anyway I just replaced it with a real 400 turbo...... I need a speedo gear on the output shaft for the new trans. Anyone have one of these or should I try GM.
Thanks, Scott
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