Quick question. From what I have observed, most people put their jacks on some kind of base, some around a foot or so tall. I am assuming this prevents the jacks from extending longer therefore pr...
5-6 PLASTIC blocks high should be high enough. You might have better luck with the Trailer life yellow plastic blocks. I have had several Lynx levelers break. Lynx are very unstable on gravel driveway. A 2"X 10"x 12"long works well to put down first then your plastic blocks.