Posted by john r eickhof [172.71.150.94] on Monday, September 18, 2023 at 16:35:19 :
In Reply to: Speedo Drive Gear for Transfer Case posted by Glenn in Maine [172.69.59.39] on Monday, September 18, 2023 at 16:07:50 :
what you have found would be correct for use on a two wheel drive truck transmission, not on the t-case. you need a gear reduction adaptor that screws onto the t-case output to the speedo as four wheel drives get the speedo feed from the t case not the transmission. the adaptor is a rectangular gearbox that installs on the t case output and the speedo cable installs into it. a speedometer shop can tell you the ratio needed and most were made by stewart warner. ithe ratio depends on tire circumference, final drive ratio to find ratio.