How to calibrate speedo in 93z?
03-18-2004, 10:44 PM
#1
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Location: richmond ky
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How to calibrate speedo in 93z?
Im ready to buy a set of 3.73s but i need to know how to correct my speedo before i get them, i have heard that i can change the gears in the speedo to fix it, but how do i find out what speedo gears to get with 3.73s and 17 inch rims?
03-19-2004, 06:20 AM
#3
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Location: Waynesboro, PA
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As said above, if it's an A4 car:
The gears that are swapped out in the A4 93 700R4(4L60) trannies are called the drive and driven gears. The correct GM part numbers for a numerically correct drive/driven gear teeth count to offset the 3.73:1 ring and pinion are as follows:
GM p/n 25513052 (44 tooth driven gear) $12.78
GM p/n 8642620 (15 tooth drive gear) $7.56
(I pulled the above information from the speed density LT1 forum)
IF it's a M6 car, you're SOL except for one option. An SLP speedo recalibration box, which they don't make anymore. You've got to find one.
The gears that are swapped out in the A4 93 700R4(4L60) trannies are called the drive and driven gears. The correct GM part numbers for a numerically correct drive/driven gear teeth count to offset the 3.73:1 ring and pinion are as follows:
GM p/n 25513052 (44 tooth driven gear) $12.78
GM p/n 8642620 (15 tooth drive gear) $7.56
(I pulled the above information from the speed density LT1 forum)
IF it's a M6 car, you're SOL except for one option. An SLP speedo recalibration box, which they don't make anymore. You've got to find one.
03-19-2004, 06:26 AM
#4
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Location: Memphis, TN
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A friend of mine has a 93 Formula with an A4 and needs to correct for a 3.42 gear. Do you know the part numbers for those? I searched the LT1 speed density forum like you suggested, but I am not really familiar with the site and couldn't find anything. Thanks ahead of time.
03-19-2004, 06:32 AM
#5
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Location: Waynesboro, PA
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Originally posted by Amped96
A friend of mine has a 93 Formula with an A4 and needs to correct for a 3.42 gear. Do you know the part numbers for those? I searched the LT1 speed density forum like you suggested, but I am not really familiar with the site and couldn't find anything. Thanks ahead of time.
A friend of mine has a 93 Formula with an A4 and needs to correct for a 3.42 gear. Do you know the part numbers for those? I searched the LT1 speed density forum like you suggested, but I am not really familiar with the site and couldn't find anything. Thanks ahead of time.
I don't know the part number, but let me ask a couple of people and I'll get back to ya.
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