Coil-Over Spring Seat - 2-1/2 in ID Springs - Drilled - Aluminum - Black Anodized - Carrera / QA1 Shocks - Each Brand-ALLSTAR PERFORMANCE MPN ALL64172 . **NOTE: This is a short top and is a replacement top for the ALL64144 and ALL64145 kit. This top will also work on a Bilstein shock. Height - .750 Shaft hole diameter - .880 ID of underside where bump stop goes - 2.305 Overall OD - 3.235 Truck Freight NO
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