MIDNITERIDER
Member
I have a 1990 Vert auto that had 2.73 gearing. Installed the 3.54 gears and also changed the plastic drive gear(15 Tooth grey) and driven gear (43 Tooth purple) for the speedo. I did NOT change the VSS as they are discontinued by GM. We did a GPS check with the following...speedo reading at 80 km/hr(49.71 mph) and the GPS reading was 80.2 km/hr(49.83 mph). With this info; it was decided not to try to find a used sensor.
Now comes the wierd thing....in o/drive slowly speeding up to 50 mph and also at 55 mph running 1800-1900 rpm approx. ;the "SHIFT LITE" comes on :shock: . I just have to go slightly faster...2 mph and goes out in both cases. Under hard WOT past these 2 points it does not come on. I have no driveability problems because of this and no default codes are seen when scanned.
My concern at this point is will I do any damage down the road to the drive-driven-and existing VSS sensor if I do not replace the VSS? My research on the VSS shows that the 2.59 and 2.73 gears take one p/n and the 3.07-3.54-3.73 and even the 3.45 6 speed tranny take a common VSS which is the one I would need.
NOTE... its a blast to drive now with the 3.54 gearing..this ol retired guy feels young again
Thanks
Bill
Now comes the wierd thing....in o/drive slowly speeding up to 50 mph and also at 55 mph running 1800-1900 rpm approx. ;the "SHIFT LITE" comes on :shock: . I just have to go slightly faster...2 mph and goes out in both cases. Under hard WOT past these 2 points it does not come on. I have no driveability problems because of this and no default codes are seen when scanned.
My concern at this point is will I do any damage down the road to the drive-driven-and existing VSS sensor if I do not replace the VSS? My research on the VSS shows that the 2.59 and 2.73 gears take one p/n and the 3.07-3.54-3.73 and even the 3.45 6 speed tranny take a common VSS which is the one I would need.
NOTE... its a blast to drive now with the 3.54 gearing..this ol retired guy feels young again
Thanks
Bill
