I own a 1992 240 that the speedo was not working on so brought a replacement speedo out of a 1989 240 that worked but does not work in mine. After checking the diff sensors have found that mine has this type of sensor and wiring that was a little bit on the sad side
The speedo I brought has come out of a 1989 240 with this type of diff and speedo sensor looks the same as this one in photo below
My question is should the !989 speedo work in mine or will I have to get my original speedo repaired and fit it back in the car or do I have to swap the diff to get the 1989 speedo to work