valkmaster
Full Member
I recently installed a new set of American Racing Piranhas with GY Eagles LS 275-55-20 on my 03 Z71 WBH and have bad vibrations above 60 MPH. I had the wheels balanced twice and also did an alignment and camber adjustment without any improvement. I also tried many tire pressure values from 30 to 44 PSI but it didn't help at all. The Piranhas have a backspace of 5.5 inches and an offset of 19 mm. Did anyone experienced this type of issue or know what may be involved ? I really like the new wheels but I now think the Piranhas may not be compatible with the Avalanche. Is the offset or backspace values acceptable ? I'm running out of options here and would really appreciate any input.
Many thanks.
Many thanks.