This is what I used. AutoZone.com | Freon 134a | 13 oz. of R134a and 2 oz. of Sub-Zero A/C booster with shelf saving dispenser
2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit
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2010 Silverado ECSB LS 4x4. Only mods so far are a K&N drop in filter and a Rough Country 2" front level kit
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