I am looking to install some of these on my 1996 Disco with a 2" OME lift. I need these to help rear sag in the back on days when I haul my dirtbike on a versahaul style hitch mounted carrier.

The plug and play "search your vehicle" says that This one - 4121 is the one that fits, but I'm not sure if that accounts for the 2" lift.

Anyone installed these before and know the proper model number?