I need to put new shocks all the way around on my 2004 Z66 Avalanche. I have both the ZW7 and G65 codes in the glove box and on the build sheet which *should* mean it came with Nivomat shocks....but when I asked the Chevy dealer to order me some rear shocks, they are saying their official GM part system is ordering up regular gas charged shocks, NOT the $600 Nivomats. However, when they look at the system and look for shocks that are appropriate for a ZW7 and G65 RPO codes, the system says it should be the Nivomat shocks. I'm at a loss on what to order?! I bought the truck with 45k miles on it so I cannot 100% sure know whether the Nivomats were on it from factory, but right now it has gas charged aftermarket Edelbrock shocks on it. The truck seems to sit and ride fine, so the rear end does not appear to sag any. Truck now has 165k miles on it and one of the rear shocks is completely blown out.
I also asked a Chevy Technician at the dealer what shock he would order just based on the VIN# of the truck, and he also said that according to his system, it would order the normal gas charged shock for $119....not the Nivomat for $600. So not sure why I have all the RPO codes that indicate it should have Nivomat shocks on the back, yet the official GM part system says to order regular shocks.
Anyone else have this happen?? THoughts??
I also asked a Chevy Technician at the dealer what shock he would order just based on the VIN# of the truck, and he also said that according to his system, it would order the normal gas charged shock for $119....not the Nivomat for $600. So not sure why I have all the RPO codes that indicate it should have Nivomat shocks on the back, yet the official GM part system says to order regular shocks.
Anyone else have this happen?? THoughts??