Speedo gear #

[motorbill87]

anyone know where to find info on what speedometer gear i need for my 91' F-250. I just bought it for a DD and the guy said that the speedo is off by a few MPH's....low and behold when I bought the truck the speedo doesn't work cause the gear is worn out. the trucks sits on 33's for now so do I need to go up some teeth or down?

 

[2813josh]

Well there's this.. http://therangerstation.com/tech_library/Speedogear.html Is the gear ratio still original?

 

[motorbill87]

thanks for the helthe final drive ratio is still OE. but i'm not sure if the previous owner changed the gear for the tires. Either way it probably wont be off much. its only on 33's for now