I've got a 14 bolt under a '86 K5 with monroe coil-over load levelers on the rear. I have now popped the top chrome rod out of the lower piston unit twice--Advance Auto replaced the first set. Both times this happened on the passenger side unit. I think the shock perches on the 14 bolt are lower than those on the 10 bolt so the shock, eventhough it's rated for the vehicle is not getting compressed so when off-road under flex it goes "boing". I'm looking for a Shock recomendation for this setup. The K5 has the 14 bolt leaf pads with the factory 10 bolt leaf stack on it.