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

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Old Aug 5, 2005 | 12:22 AM
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Hello All, New to the forum and appreciate what I've read. I got my first corvette, and ooooo is it cool. One problem I have though, the speedometer won't work until a mile or so down the road. I'm thinking the speed sensor on the transmission is going bad. The problem is, is GM no longer manufactures the part, and it's not available as an after market item. All companys catalog it, but when ordered it comes up unavailable. Does anyone here have any ideas as to weather this one can be rebuilt, or information on the whereabuots of a replacement. The Spec's are:
1990 coupe
ZF 6 speed
It has a RPO of "D9B"
This has a part # of 25007308
3.33 rear end (I think it's the same part as or for the 3.07)
Also was thinking that if part is so hard to get it might never go bad and I possible may have something else going wrong. Any thoughts?
Thanks Scott
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Old Aug 5, 2005 | 12:40 AM
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The Parts locator shows hits at these numbers. If you don't have any success with them PM me for more.

Artie


800 999-0230

800 414-4462

800 734-5534
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Old Aug 5, 2005 | 07:49 AM
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Dont forget Ebay, you might find a good used one or an NOS
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Old Aug 5, 2005 | 07:56 AM
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FWIW, it you come up short finding that part, Dakota Digital has a Speedo correction box for $80 and a magnetic induction speedo sensor for an additional $30. I'm looking at that as a solution for my lack of speedo (and different rear-end ratio from stock)

SEN-4165 on http://www.dakotadigital.com/index.c...rod/prd109.htm

and SGI-5 here:
http://www.dakotadigital.com/index.c...rod/prd126.htm
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Old Aug 5, 2005 | 11:25 AM
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There are some excellent Corvette salvage yards like Taber's Corvette Parts that always have a plethora of parts on hand.

http://www.tabercorvetteparts.com/
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