1991 Previa help needed

[War_Wagon]

I am glad no one bought my 5 speed Previa when it was for sale, now that I have had time to drive it around, I really like it! I need to figure out if there is a way to tell what is causing the speedo to act weird though. I have read that there is a common issuse in the speedo head itself that causes the needle to act weird. There is also of course the VSS in the trans, but all the threads I have seen say that your OD light on the dash will light up if your VSS is faulty. Well, ya see, the ol' 5 speed Previa doesn't have an OD light...so I am trying to figure out if there is another way to figure out what's causing the problem. Orange4boy - I am looking in your direction here!