Hi, As per checking details, this pair fit not be compatible with 17 inch or larger wheels. This matters most if you have the police package type version. To accurately check fitment, please follow the steps below since you did not specify if you have the police package or not. On the homepage, please enter your application, simply select your vehicle’s year, make, model, sub-model, and engine size and click “Go.” Once your application is selected, type the name of the part you need on the top search box and press enter. Once the part shows up on your screen, you’ll see a “Guaranteed to Fit, Direct fit” note/badge if the part will fit, and we recommend that you also double-check your vehicle fit details as well as the vehicle fitment information table on the product page.

Hi Bradly, I'm glad to assist you. These rear struts are for the 17 and 18-inch diameter wheels only. It is incompatible with the 16-inch wheels. The correct part number for 16-inch wheels is SET-RB28070005. Grab our promo price, which comes with a 30-day post-purchase price match guarantee. Click the link below to buy it today. Happy shopping! https://www.carparts.com/details/Chevrolet/Impala/TrueDrive/Shock_Absorber_and_Strut_Assembly/2005/LS/6_Cyl_3-dot-8L/SET-RB28070005.html?can=CPJE1043_CSQA_20230121

My wheels are 17's

Hi Charles, I'm glad to help you out. You may want to check the tire size and wheel specifications of your vehicle. We also suggest that a certified mechanic diagnose the vehicle for proper recommendations. You can use this link to go back to the item page and continue the order: https://www.carparts.com/shock-absorber-and-strut-assembly/truedrive/set-rc28070007?can=CPAP3648 I hope this helps. Happy shopping.

No...its just sagging in the back

Hi Mark, I'll be happy to help. Yes, this can help. You can tell me your vehicle information and I can check if there are heavy duty shocks for your vehicle.

Yes they help rise my back and front my car rides better

Hi Randall, thank you for reaching out. Your 2006-2011 Chevrolet Impala LTZ with 18-inch wheels can use these rear fully loaded struts, which are compatible with both 17- and 18-inch wheels but not 16-inch wheels. The presence of 18-inch wheels on your LTZ model does not necessarily indicate that the vehicle is a taxi or police version. Police and taxi versions of the Impala often have specific suspension and wheel setups distinct from civilian models. The LTZ trim is a higher-end civilian trim and usually comes with larger wheels as standard, not because it is a police or taxi package. If everything checks out, you can use the link below to order while the part is in stock. I hope this helps. Enjoy shopping! https://www.carparts.com/shock-absorber-and-strut-assembly/truedrive/set-rc28070007?cpcid=Q1BHRzQ4NTB8V3JpdHRlbiBJbnRlcmFjdGlvbiBUZWFtIC0gQ1NRQXwvc2hvY2stYWJzb3JiZXItYW5kLXN0cnV0LWFzc2VtYmx5L3RydWVkcml2ZS9zZXQtcmMyODA3MDAwN3wyMDI1MDUxNQ==