i have not used them myself but i talked to someone that did. the aluminum can break in cold weather. i was gona get a set but that kinda changed my mind. Living in michigan it does get cold now and then
. I also instaled a Daystar 1" body lift on new mounts and he said it is great. its about the same price as the system but it has the body lift and body mounts all in one. its kind of all up to you and how much you wheel though.
Its not what you buy...its what you BUILD!!!
1995 YJ ,SOA with 4" procomp front 3.5" BDS rear 1" shackle rear, custom stearing, 35x12.50x15 pro-comp MTs, warn xd9000i, on-board air from A/C, dana 44 rear and 30 front with 4.56, powertrax no-spin rear, custom disks rear/trutrac front, warn front shafts, HD SYE kit, HD front and rear driveshafts, Warn 4X flairs, PIAA 520 ligts and on and on and on :)