Thanks want. I think I know what box you are talking about.

ayalar007 so they are a seperate system? I know about the vac pump in the spare tire well, the W140's have it in their to. That makes sense though because the last time I had a vac leak in the climate control the trans would shift really hard. But the door locks always(knock on wood) work fine.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200