I have a 62 c-10. My original speedo went kaput. I ordered areplacement and I think they gave me one from a 63. Anywho the new one reads 10m.p.h. slower than the original. Why is this??? Ihave access to another one from a 62 from a guy not far from me, but it is in a big truck and im afraid ill just have the same problem. Any thoughts on this would be helpful.
Darin
