Long travel shocks are an important part of a flexible off road suspension system. Bilstein shocks are world renown for quality and performance. Available in 10", 12" and 14" lengths. 255/70 Valving.5150 model Bilstein shocks include a fixed external fluid reservoir. Available in 12" and 14" lengths. 255/70 Valving.Note: All shocks sold by BC Fab include sleeves for both top and bottom bolts. 10" & 12" shocks include black shock boot, 14" shock does not include boot due to the extended travel range of the shock.