Why is it I cannot even find the replacement nivomat shock for a 07 with zw7 RPO code. I even called a rep for Sachs they claim they don't have one for that year.. So what brand was on my truck? I just want to know what I had so I can determine if I want to replace with oe or actually change...
also I currently have the OEM AC-Delcco 540-433 that Gm sold me on the rear, the ride isn't horrible on the interstate or highway just rough and loud at low speeds hitting the cracks and joints in the road.
Hey guys I am new to the forum but I am tired of trying to fix the ride on my yukon myself, this thing has been a great ride for my family and I, Earlier this year i thought i would change my rear shocks since it has 140k on it... Little to my knowledge at the time it has the zw7 smooth ride...
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