Speedo gear ?
Thread Starter
Pro
Joined: Oct 2009
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From: vero beach florida
Speedo gear ?
Changing from 2.59 to 3.07 and want to calibrate the speedometer.
Saw several posts about turning the speedo gear 180*, but it was always someone who heard of it being done.
Has anybody actually done this and how did you do this?
If not, who is a good source for the speedo gear and the other one which slips my mind right now(long day)?
Thanks
Saw several posts about turning the speedo gear 180*, but it was always someone who heard of it being done.
Has anybody actually done this and how did you do this?
If not, who is a good source for the speedo gear and the other one which slips my mind right now(long day)?
Thanks
Team Owner
Joined: Sep 2003
Posts: 25,375
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You should only need the 42 tooth driven and the VSS for your install. Your present drive is a match I believe. Don't rotate the VSS, just get the correct and I believe it's available still.
If your car is a high miler while you're doing the rear you might want to consider some light maintenance and replace the transmission extension bushing and seal or certainly the seal! U-joints if they haven't been done previously would also be a good idea.
If your car is a high miler while you're doing the rear you might want to consider some light maintenance and replace the transmission extension bushing and seal or certainly the seal! U-joints if they haven't been done previously would also be a good idea.
Racer
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From: van buren ar
Drifting
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Racer
Joined: May 2009
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From: van buren ar
driven gear part #2551305 is discontinued,however p/n#9775187 is what they gave me and its 45 tooth and light blue.i will post the results.
results are in dont waste your time with p/n#9775187 its wrong.sorry.
results are in dont waste your time with p/n#9775187 its wrong.sorry.
Last edited by c-4 lhozwalte; Jan 28, 2010 at 07:37 AM.
Team Owner
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Surfer92: Yes you're all set with good information! Enjoy!!!
c-4 lhozwalte: 9775187 is I'm quite sure a 45 tooth gear for a "mechanical drive" speedometer. It will NOT do for you what you want! There are sources for the correct part#! Don't even bother taking your car apart to attempt the speedo fix. Just locate the correct part #'s from the above posted "correct" information.
c-4 lhozwalte: 9775187 is I'm quite sure a 45 tooth gear for a "mechanical drive" speedometer. It will NOT do for you what you want! There are sources for the correct part#! Don't even bother taking your car apart to attempt the speedo fix. Just locate the correct part #'s from the above posted "correct" information.
Last edited by WVZR-1; Jan 27, 2010 at 08:20 PM.
Racer
Joined: May 2009
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From: van buren ar
[QUOTE=WVZR-1;1572899899]Surfer92: Yes you're all set with good information! Enjoy!!!
c-4 lhozwalte: 9775187 is I'm quite sure a 45 tooth gear for a "mechanical drive" speedometer. It will NOT do for you what you want! There are sources for the correct part#! Don't even bother taking your car apart to attempt the speedo fix. Just locate the correct part #'s from the above posted "correct" information.[/QUOT
where the can i find 25513052?ive been all over the web this morning with no luck yet?
c-4 lhozwalte: 9775187 is I'm quite sure a 45 tooth gear for a "mechanical drive" speedometer. It will NOT do for you what you want! There are sources for the correct part#! Don't even bother taking your car apart to attempt the speedo fix. Just locate the correct part #'s from the above posted "correct" information.[/QUOT
where the can i find 25513052?ive been all over the web this morning with no luck yet?
Drifting
Joined: Oct 2004
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From: Hawaii
http://www.transmissioncenter.net/sp...n_______va.htm
Look for "#55. Driven gears for gear driven electronic speedometers"
Look for "#55. Driven gears for gear driven electronic speedometers"
Racer
Joined: May 2009
Posts: 421
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From: van buren ar
http://www.transmissioncenter.net/sp...n_______va.htm
Look for "#55. Driven gears for gear driven electronic speedometers"
Look for "#55. Driven gears for gear driven electronic speedometers"
just got my speedo gears and vss in the car and its spot on with the garmin.thanks for the link,couldnt do it with out the help.
Le Mans Master
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Thread Starter
Pro
Joined: Oct 2009
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From: vero beach florida
Ordered VSS from Napa, after a week the order status said PICKING, wait 3 more days and checked again. Status was CANCELED, no email notification, I have emailed customer support and have not received and answer and I called and there customer support mailbox is full and disconnects you.
This is lousy customer support and sales!!!
Will not buy from them again, so does anybody know where I can get the VSS without paying out the nose?
Thanks
This is lousy customer support and sales!!!
Will not buy from them again, so does anybody know where I can get the VSS without paying out the nose?
Thanks
Safety Car
Joined: Jun 2006
Posts: 3,629
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From: FL
If NAPA no longer carries the VSS this is the only source I am aware of and you WILL pay through the nose here.
http://www.transmissioncenter.net/sp...n_______va.htm
You may want to try rotating the stock one, I did it on mine when I first installed 3.73's and it seemed to work fine but since the correct part was still available from GM at the time I bought it.
I've always been confused by the reason to rotate 180*, when I compare the two I see no difference in offset at all.
http://www.transmissioncenter.net/sp...n_______va.htm
You may want to try rotating the stock one, I did it on mine when I first installed 3.73's and it seemed to work fine but since the correct part was still available from GM at the time I bought it.
I've always been confused by the reason to rotate 180*, when I compare the two I see no difference in offset at all.
Thread Starter
Pro
Joined: Oct 2009
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From: vero beach florida
go to www.transmissionhead.com all you ever wanted to know and buy
He stated that I actually needed the 46 tooth driven gear, but nobody makes it and the pigtails varied on the Vette's. some used standard and some were vette only.
He also said that if I have the white VSS that turning it 180 and reinstalling MIGHT make the speedo acurate and might not.
So, What does turning the VSS and drive gear 180 accomplish?
And why would GM use 2 different VSS's?
And why would the black one be turned one way on all other cars and turned 180 out for the vette?
Safety Car
Joined: Jun 2006
Posts: 3,629
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From: FL
You didn't mention tire size, but here is a calculator that works pretty well, see what you come up with.
http://webpages.charter.net/khasting...peedocalc.html
http://webpages.charter.net/khasting...peedocalc.html
Last edited by toptechx6; Apr 21, 2010 at 04:56 PM. Reason: link did not work
Thread Starter
Pro
Joined: Oct 2009
Posts: 679
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From: vero beach florida
You didn't mention tire size, but here is a calculator that works pretty well, see what you come up with.
http://webpages.charter.net/khasting...peedocalc.html
http://webpages.charter.net/khasting...peedocalc.html
Thanks
