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  1. J

    2015 GMC Yukon XL Shock question

    @Joseph Garcia - Thanks! I'll see what these on-line sources have to offer. I've attached a photo of the RPO code plate from the glovebox. Appreciate your feedback!
  2. J

    2015 GMC Yukon XL Shock question

    @swathdiver - Thanks for the reply! All four shocks look like regular shocks. There are no electrical connections anywhere, nor any air lines on the rear shocks.
  3. J

    2015 GMC Yukon XL Shock question

    @Big Mama—Thanks! I did buy the Yukon used, however, it was originally used in a rental fleet and I bought it with about 33,000 miles on it. I'm pretty sure the rental company wouldn't have changed anything. I looked at the RPO codes and tried to decipher it using one of the online decoders. It...
  4. J

    2015 GMC Yukon XL Shock question

    Sorry if posted elsewhere; searched and had no luck. 2015 Yukon XL with 135,000 miles. Used to ride GREAT, but now rides like basic truck. Stopped by GMC dealer today to determine which suspension I have so I could look at repairs, if needed. They checked my VIN and still couldn’t determine...

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