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90 SS 454 trans - 375? speedo gear

733 Views 2 Replies 2 Participants Last post by  10.5-57
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
1 - 2 of 3 Posts
thanks ^^^^ thats what I was thinking, it looks pretty hard to get off that shaft.], LOL
1 - 2 of 3 Posts
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