One problem related to constant velocity joint has been reported for the 1998 Chevrolet Blazer. The most recently reported issues are listed below.
When turn left or right or stopping or going driving foward makes clunking noise sometime it really load. . . I have taken vehicle to my mechanic and he said its my front joints and said it should be covered under my warranty. . So I took it to my dealer . . And he said it wasn't, so I called Chevrolet.