03-07-2008, 10:48 pm
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|  79 Speedometer which gear to use?
I have installed a 700 R4 transmission in place of a TH 350 transmission, it has a 355 rearend, I need to know what gear to put on the speedometer to correct the mileage reading? It is reading about 12 miles fast.
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03-08-2008, 05:25 am
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| GM World Class Certified Technician  Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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HI there, What gear color was in the old transmission? What gear color was installed in the new transmission? Allthebest, c4c5 | ||||||||||||||||||||
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03-08-2008, 05:08 pm
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You need to add about 4 teeth to the gear.
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