52 plate Clio rear and fault

Hi guys brought a clio 1.2 52 plate for the misses to learn in. It has an active error on both rear and sensor. Previous owner had put a second hand axle on the car. This is when the light 1st came on. ILet's got the 26 toothed abs rings on atm. Am I right in thinking there is a 44 toothed abs version for this year and it could be as simple as switching the axle for one with the 44 setup on thanks for any help