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Old 03-14-2013, 12:03 AM   #111
ls1nova71
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Join Date: Dec 2009
Location: Independence Mo
Posts: 4,118
Re: 67-72 Electric speedo

Quote:
Originally Posted by cjohnson6772 View Post
EXACTLY the information I was looking for! Thank you. This may be a silly question but when I go to put the needle back on the gauge how will I know where to reinstall it? Should I just reinstall at 0? Will the gauge pre-sweep and fix itself? Do I have to put it back on exactly where I removed it?
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That's not a silly question at all. It DOES matter where you put the needle. If you put it on in the wrong spot, the speedo will be off by that much through the whole range. You can't put it back on where you took it off since on the 72 0 MPH is lower than the S-10, so if you put it back on where you took it off it would be at roughly the 10 MPH mark. When you go to put the needle back on, you need to power the speedo up, this will put the driver at the 0 MPH mark. Then put the needle on. It may take a couple of tries, as they tend to want to move when pressing it on. If you have a GPS, you could go for a drive and make sure it's in the right spot (provided your tune is correct). I hooked mine up to my car (03 Sunfire) through the cruise control plug and made sure it was accurate that way. On mine, the needle when the truck is stopped, is actually at about the 2 MPH mark, but it's not noticeable because of the angle you view the speedo.
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My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html

5.3 swap into my RUSTY '71 C10
http://ls1tech.com/forums/conversion...71-c-10-a.html
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