Fast question about intalling rear lca's

Can I just use ramps to put in my new lca's and no jack or stands? Just ride up the ramps, install them, ride off the ramps?

I would NOT recommend taking LCA's off with wieght on the wheels

There are LCA install directions at bmrfabrication.com

You are definitely going to want to have the car supported by jackstands in the rear. The chassis should be supported by jackstands and the rear axle should be supported by the floor jack. The whole trick of getting the LCAs in is playing with the floorjack and adjusting the rear axle height.