C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1990 Steering rack code FB

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Old Jun 8, 2021 | 02:22 PM
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Default 1990 Steering rack code FB

Anyone know anything about this steering rack code? (stamped on bottom cover of input shaft)...

FE1 suspension so, nothing special. But no one seems to list a rebuilt rack with this code?

Thanks!
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Old Jun 8, 2021 | 03:24 PM
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Could that actually be FH? In '89 (last year for 2 RACK ID GM SPO) there was an FH as one of the codes. The 1990 build sheets that I've seen display the FH for the box. All years beyond '90 GM SPO mentions no code select options. Do you have a 'build sheet' for your '90?.

Last edited by WVZR-1; Jun 8, 2021 at 03:25 PM.
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Old Jun 8, 2021 | 07:32 PM
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No, it is for sure an FB.... the 1/2 circles of the B is very distinct and clear to see.
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Old Jun 9, 2021 | 11:15 AM
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Contact turn one and talk to one of the technicians. They can tell you what year(s) it came from and what ratio it is.
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Old Jun 10, 2021 | 05:07 PM
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What would be interesting is, those that have 'Build Sheets' for years '90 and newer post up what their 'Build Sheet' mentions and if they've ever validated that with the 'end cap' ID. For '90 it's block 20 and I've seen only FH there on a couple '90 MY. I've never checked later. Later than '90 I believe the ID on the 'end cap' is likely irrelevant.

Last edited by WVZR-1; Jun 10, 2021 at 05:12 PM.
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