Chevrolet Repair: non working speedometer, chevy elcamino, tail shaft

Question
do you have any idea on an average how much it will cost to fix a non working speedometer of a 1983 Chevy Elcamino?

Answer
HI LISA,WELL THERE ARE A FEW THINGS THAT CONTROL THE SPEEDO,THE SPEEDO HEAD [WHAT YOU LOOK AT]
THE SPEEDO CABLE, [ON THIS YEAR CAR.] NEWER CARS HAVE A SENSOR. THE LAST THING IS A DRIVEN GEAR ON THE TAIL SHAFT OF THE TRANSMISSION..SOMETIMES THIS GEAR WEARS DOWN.COST OF THIS GEAR IS ABOUT $5.66 LABOR 2 HOURS. SPEEDO CABLE $25.00 LABOR 1 HOUR. SPEEDO HEAD USED??? 20.00 ???
LABOR 2 HOURS. THE MOST COMMON PROBLEM IS THE SPEEDO DRIVEN GEAR,NEXT IS THE CABLE. IF YOU CAN FIND OUT WHAT IT IS AND GET BACK TO ME I CAN HELP YOU FURTHER.IF YOU WANT ME TO HELP YOU DIAGNOSE THIS,GET BACK TO ME..   PLEASE WHEN YOU THIS THIS SITE WOULD YOU RATE MY ANSWER. THIS WILL HELP ME.  THANKS TOM..