These were most affordable ones I could find that were adjustable and they were on eBay. I Didnt want zerk fittings. They don’t fill with grease right anyway, unless they have a groove in them to get grease across the entire bolt. Haven’t found any that do that yet. I Just grease the bolts up good. Besides the stock ones didn’t have grease from the factory put on the bolts or zerks and they last 20 plus years.I think I adjusted mine to 27 inches center bolt eye to center bolt eye for the lowers. I don’t remember the upper length.But that’s easy. Just measure how ever many inches that you extended the lowers from the factory lowers control arms. Then You would add that many inches to the uppers.That gave me enough for the wheels to be centered correctly in the wheel wells. The coil springs are not binding and they are nice and straight. I have a 5 inch lift. I think it would be good for a 5.5 inch lift, but you might Get a little front driveline vibration, a longer driveline would work to eliminate that..I know your drive line angle would suck if you went to 6”.The kit says it will handle Up to 8 inches But I don’t know if you would have enough thread, But i have a 1994. So it may be a little different. This is just another option if you deside not to build them. Hopefully you can use some of my info or someone else can. I hope more people give there input.