I’ve noticed that the hubs for the SS model 2008 to 2010 HHR are different than the LS/LT models ZZP has a list of these in their catalog

https://zzperformance.com/products/z...earings-ecotec

Apparently it’s the voltage that the wheel speed sensor identifies, some time ago someone swapped out their rear axle beam and had to swap the rear hubs to their LT hubs to address an ABS warning light.

 

The SS has a different EBCM and different WSS (called Vertical Speed Sensor in GM speak). I did not look up the other sensos.

 

That’s why I posted this information, for future readers looking for information

 

Exactly the reason I posted.

 

Great minds think alike!