Looking for a 1 : .7466 ratio adapter to correct speedo from TH400 swap .
* actual Radar Gun speed is 45 km/h - speedo reads 60 km/h . *
GM has a 1 : .7333 ratio adapter that was used on early Chevs . GM# 3932220 that would work as well . The 1 : .7466 was avaiable from Stewart Warner .
* actual Radar Gun speed is 45 km/h - speedo reads 60 km/h . *
GM has a 1 : .7333 ratio adapter that was used on early Chevs . GM# 3932220 that would work as well . The 1 : .7466 was avaiable from Stewart Warner .
