Speedometer recalibration...
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: Speedometer recalibration... (Blueyednd)
You asked this same question on 6/18 @ 11:03 PM. I responded less than 24 hours later, on 6/19 @ 8:40 PM. Was there something lacking in my response? For review, here is my post:
I guess I didn't mention that these are GM part numbers, available from your favorite GM dealer. The numbers come from an older book. Any numbers not still current should supercede. I hope I'm not too late, THIS time.
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1984 Crossfire
Member NHRA
You should currently have a 8640517, red, 17 tooth, drive gear, a 25513044, red, 37 tooth driven gear, and a 25007338 sensor. You will need a 8642620, gray, 15 tooth, drive gear, a 25513049, green, 42 tooth, driven gear, and a 25007339 sensor. Even needing all three items, this is much more sanitary, and less expensive than the "black box" correcter. Good luck, and...
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1984 Crossfire
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RACE ON!!!
1984 Crossfire
Member NHRA
RACE ON!!!
1984 Crossfire
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Thread Starter
Drifting
Joined: May 2002
Posts: 1,432
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From: Southeastern Louisiana
St. Jude Donor '05
Re: Speedometer recalibration... (CFI-EFI)
You asked this same question on 6/18 @ 11:03 PM. I responded less than 24 hours later, on 6/19 @ 8:40 PM. Was there something lacking in my response?
I have searched the net over and over again to try to find part numbers and you did it in one, ok, two trys. :D Thanks again. :thumbs:
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: Speedometer recalibration... (Blueyednd)
The second post wasn"t a "try". I merely cut and pasted, my origional post. It was enough work, that I wanted to make sure you benefitted from it. Good luck, and...
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1984 Crossfire
Member NHRA
RACE ON!!!
1984 Crossfire
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Le Mans Master
Joined: Apr 2000
Posts: 5,713
Likes: 105
From: Manassas VA
Re: Speedometer recalibration... (CFI-EFI)
Not meaning to butt in on this post, but could you tell me what I need for a 4.09 gear? I had the 2.59 and I switched to a 3.54, got the 15tooth inside gear, the new sensor, and the driven gear, so I hope I can get by with just the driven gear. Thanks in advance.
Thread Starter
Drifting
Joined: May 2002
Posts: 1,432
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From: Southeastern Louisiana
St. Jude Donor '05
Re: Speedometer recalibration... (93 ragtop)
93 Ragtop - When I called my local Chevy dealer, they looked the parts up for me because the part numbers listed were different than listed above, based on 17" wheels vs 16" factory wheels, etc. The Chevy parts shop was very helpful getting the correct parts ordered. I don't know about the sensor. I was told I would have to have it ($90). The gears were only $5 each. Good luck.
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Le Mans Master
Joined: Apr 2000
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From: Manassas VA
Re: Speedometer recalibration... (Blueyednd)
Thats high. When I did my 3.54 a couple of years ago, I paid $40.00 + for the 2 gears and the sensor. I got it through Jeff Koop at Superior Chevrolet. But I understand he is no longer with them. I used to see him on this forum a lot, but havnt noticed anything lately.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: Speedometer recalibration... (Blueyednd)
93 Ragtop - When I called my local Chevy dealer, they looked the parts up for me because the part numbers listed were different than listed above, based on 17" wheels vs 16" factory wheels, etc. The Chevy parts shop was very helpful getting the correct parts ordered. I don't know about the sensor. I was told I would have to have it ($90). The gears were only $5 each. Good luck.
Thread Starter
Drifting
Joined: May 2002
Posts: 1,432
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From: Southeastern Louisiana
St. Jude Donor '05
Re: Speedometer recalibration... (CFI-EFI)
If you wanted them for 17" wheels...Why didn't you say so??? Only the driven gear would change, and probably by only one tooth. They don't list different gears for your origional ratio for different tire sizes. I made an assumption based on YOUR lack of input. I also gave you the sensor information. I must not be believable. First, ignored then, second guessed. I enjoy helping people on this forum that need and want help. You seemed to require neither. Why did you Ask??? :mad RACE OFF!!!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: Speedometer recalibration... (Blueyednd)
What is your deal? Lighten up... I apologized for not seeing your original post and then poked fun at myself for having to do it twice.
"and you did it in one, ok, two trys."
...so the numbers you gave me were not exact for my application,
You weren't ignored or second guessed
I don't know why you've taken this so personally.
I thought this was the place to ask questions.
I don't understand why my questions or description of ordering the speedo gear has caused you to have such heartburn.
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Re: Speedometer recalibration... (Ramrod92)
The last time I called Superior Chevrolet, Jeff was in management prep meetings. I believe he has been made the parts manager. Congratulations, Jeff, and thanks again for all your prior help (future, too).
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1984 Crossfire
Member NHRA
RACE ON!!!
1984 Crossfire
Member NHRA
Thread Starter
Drifting
Joined: May 2002
Posts: 1,432
Likes: 0
From: Southeastern Louisiana
St. Jude Donor '05
Re: Speedometer recalibration... (CFI-EFI)
It wasn't the question or the ordering. It was the treatment of, and the value you attributed to my answer...BOTH times. Possibly, before you ask another question, you will consider if you really, NEED the answer. I guess, it's really myown fault. I just should have said, "Call Chevy". Or better yet, nothing at all.
[Modified by Blueyednd, 2:38 PM 6/29/2003]
