The national average cost to replace an axle or half shaft on any vehicle ranges from $395 to $821, as of 2016, according to RepairPal.com. The exact cost of the repair depends on the year and model of the Ram vehicle and the location of the repair shop.
Approximately $178 to $226 of that amount is for labor costs associated with the repair, while $217 to $595 is for actual parts required. The average cost for the repair does not take fees and taxes into consideration.
A failing CV joint causes a clicking noise when the operator turns the vehicle. An examination of the shaft by a mechanic determines the need for replacement.