DJM suspension lowering control arms

[73stepside]

Does anyone have knowlege of this product?These control  arms lower your front 3 inches,5 with 2 in. dropped coils.I had 3 inch dropped spindles but they do not work well on the older trucks unless you have those really tall wheels,Yuck.I have 15 inch 60 series tires and cut one coil off the spring with the dropped spindles.I had bad clearence problems.Could not even pull off the side of the road without scraping.I now just run stock spindles with 2 coils chopped off.The ride is not bad until I hit a rough patch of road.RR tracks and speed bumps are no problem.I want a 4 or 5 in. drop.Will these control arms give me a better ride without clearence issues?