Landrum ST Series Bump Stop Spring - 2.125" Free Length - 1.960" OD - 1200 lb/in Spring Rate - Steel - Gray Powder Coat Quarter Midget Springs The 506 seals have a

The 506 seals have a

3/8-16 in Thread

2003-2015 Chevrolet Express 3500

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Landrum ST Series Bump Stop Spring - 2.125" Free Length - 1.960" OD - 1200 lb/in Spring Rate - Steel - Gray Powder Coat Quarter Midget Springs The 506 seals have aProduct Description: Bump Stop Spring ST Series 2. 4 in Free Length 1. 960 in OD 1200 lb in Spring Rate Steel Gray Powder Coat Sold Individually Consistent Performance and Reliability Landrum Performance Springs give you the consistent high performance and reliability you need. We use state of the art designs, materials, and manufacturing processes to produce race springs that out perform the competition and help put you in victory lane. Lightweight,