I just recently purchased the GL and the front air struts were replaced April 2017 at 84k miles with Arnott brand from the local dealer. They came with a lifetime warranty. Unfortunately the warrant is not transferrable to me. Anyway, I'll be replacing the front ones this week. The vehicle is currently at 197k miles and the front drops. During certain times I can feel and hear the leak from the drivers front unit.

I did not find an Arnott manufactured spring conversion kit for it.

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Jim