Speedo Correction w/ TH400
03-23-2005, 09:34 AM
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Speedo Correction w/ TH400 Wasn't sure where to post this but here goes. I have a 97SS w/ TH400 and LT1 Edit and I can't get the speedo corrected enough. Edit will only let me go up to a 4.96 gear ratio and I'm still 20mph off. Any help would be great!
03-23-2005, 11:23 AM
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We changed the tire size and the gear ratio in ls1 edit to get the speedometer to read correctly. In LS1 edit we have it as a m6 tranny and used gear size=6, and tire size= 16.4. He had 4.10 rearend gears, and standard th400 gearing.
