Quick view Superduty 99-04 Unit Bearing Tool Artec Industries Disassemble your 99-04 Unit Bearings to change out tone rings. Looking to do a 1 ton swap into a JK but worried about the ABS? Now you you can change the factory Superduty tone rings on your 1999-2004 Unit Bearings to match the factory JK 52 tooth tone... $22.99 Add to Cart Compare