Good day, with our older Suzuki Vitara 2.0 Bj.99, 170 tkm more and more in the last months there is a blocking of the wheels or the drive with inserted all-wheels – first quite with additional reduction and beaten wheels. Is it a normal wear of the compensation gear? I can not tell if it comes more from the front or rear wheels or both alike. Can an oil change in the compensation gear bring something? Does someone know this and have experience with it?