old_truck1969,
Go to the TCI web page below.
http://www.tciauto.com/tech_info/speedo_gears.htm
They give you all the gear info you need.
Better yet try this web page.
http://www.chevytalk.com/tech/transm...calibrate.html
------------------
Gerardo
1983 Custom Truck
TX Plates: "BAD BOW"
[URL=http://www.geocities.com/abetterchemist/]http://www.geocities.com/abetterchemist/</A>
[This message has been edited by gchemist (edited 04-13-2001).]