2002 yukon xl shock options

[Fless]

ZW7 indicates a variation of the "Premium Smooth Ride" suspension. On the GMT800 chassis the "G65" RPO indicates the Nivomat shocks in the rear (and likely a front shock that is different from the Z71 or standard suspension). The rear springs are also softer. Take both RPO codes into consideration.

 

[me262]

Codes and shock photos

 

[swathdiver]

Codes and shock photos

Rear Nivomats for yours is 540-532 or 12477517. Springs are 15182555 or maybe 45H2165/19255625.

Front shocks look like 540-182 or 12477738.

 

[Fless]

Those pics do look like the OE Nivomats. You can replace them with like shocks (manual, self adjusting Nivomats - $$) or convert to conventional shocks if you replace the coil springs with standard or Z71 springs.

 

[me262]

Ok...i loaded the rear axle with over 300 lbs of weight. Took measurements at my hitch before and after. 13" before and 11.75" loaded. Drove it a couple miles and took another measurement. Still 11.75". Drove it another 3 or 4 miles. Measurement wasnow back to unloaded measurement of 13". Maybe nivomats are ok? Maybe my bounce is front shocks? Its worse when i have my camper attached going down bouncy road.

 

[Fless]

It does sound like the Nivomats are adjusting, it just takes a few miles for them to react and adjust.