well, its not really a K5, its the CUCV, but meh semantics..... problem is when im driving down the parkway near my house at 50 or so, at certain points in the road, ill hit a bump, then another bump in quick succession, and the truck will feel like its in a hydrolics competition lifting off the ground with all four wheels. i dont think it is, but it feels like it. to be honest its quite unsetteling. the truck has a short wheelbase so some bounce is to be expected. but this is pretty severe it goes on for a good 5 to 10 seconds. the guy i just bought it from says he just installed some ranchero shocks up front and on the steering. i was wondering if rancheros had a reputation for being a bit bouncy, or if there might be another known cause. hell maybe i just need to drive a bit slower lol. anyway, thanks for any help.