I noticed in my camaro assembly manual an optional speedometer adapter (Gear box reducer) part#'s 6476735 and 6476736 for 4 speed trans.

What was the purpose of this adapter and did it apply to rear end gear ratio's. Ihave a chance to purchase one if needed. Thanks for all replies to my questions.
John
Charleston, SC

Aren't those ratio adaptors, they were used when the speedo gears (driven and drive)could not give accurate speedo readings due to the rear end gearing, so a ratio box was used. For some rear end gearing, there are no speedo gears available that will fit, so use what will fit and correct it with a ratio box.

Where might 1 obtain a ratio adaptor?


350/400hp,m-21,3.73 richmond posi camaro

This link was posted at another site, i have no experieance with them, but they do have them

http://www.transmissioncenter.net/speedometer_calibration_______va.htm