Speedometer gears

[1952ray]

For anyone who cares to know. The 86/87 gn's with 342 factory rear end gear the 200 4r Trans comes with the 11 tooth drive gear orange in color, the driven gear is 30 teeth blue in color. If you speedometer is fast 5+ mph or you go with taller tire's you will need to drop down with the driven gear 29 teeth green in color or even lower. TCI keeps these gears in stock. 662-224-8972

 

[INEEDAGN]

The green 10/black 27 combo is virtually identical to the oe ratio as well if a green gov gear is all you can find...

Posted from the TurboBuick.Com mobile app

 

[GNRick]

How to calculate gears (curser down 1/3 of the page): http://www.transmissioncenter.net/700r4.htm