[Zoomad75]

I'm a fan of the KISS concept. I get what CSA has stated, but I've found for the type of wheeling I do, 4" rough country springs with a shackle flip out back (even removing a overload leaf per side out back) has given more than enough flex with my tires. I'm running 35x12.50's on a 8" wide wheel. I do mainly mountain trails with some rocks, creek crossings, steep climbs and such. The rear with the shackle flip out-flexes the front for sure. The rough country springs are of a higher spring rate than ez-rides or soft ride springs which does limit some flex, but on the flip side they don't rub the fenders either. It's a balance for sure but for my K5 it's worked out excellent.

I spent about $250 on the rough country kit that included the front springs, rear blocks (didn't use due to shackle flip) steering arm, 4 shocks, hardware and brake line relocation brackets. I spent $100 on used shackle flip brackets (echobit- no longer in business) and bought brake lines for a GMT400 style 3500HD for the front that are longer than stock and fit with a minor size adjustment to the bore on the block end.

52" swaps are great up front don't get me wrong. If you got the fab skills, tools and time to do that. 4" front springs require less work to the point you could pull off the lift in a weekend.