I'm amazed that you use snowchains for something like that on a 4x4. You are better off using good snow capable tires with slightly less air in them than usual. Siping is also very good especialy if you sipe the whole tread, siping the middle and studding the outsides works well too if you think you need studs.
Last man I knew that used snowchains was my grandfather.

1987 SWB Pajero 2.5 TDI on 31" rubber waiting for a hip replacement and bigger shoes