[DaKing214]

I have a 99 deville with a bad rack & pinion. I looked at the rockauto website and it shows different rack & pin's. Is there a specific one needed for my car or will any one of them do? An I'm not going to buy the $500 oem one since there are cheaper options. Any help is welcomed

 

[MoistCabbage]

I'd stick with AC Delco or Cardone.

 

[amunderdog]

Rock Auto shows different units for different suspension systems.
Figure out which suspension system your vehicle is equipped with, then order the correct replacement.
You can try a GM VIN# based parts search like http://www.gmpartsgiant.com/ to try and narrow the search.