When I had a squiz they only had sizes for sedans you may get lucky though
The store I went to had quite a few sets of the 4WD ones. I got the ones that suit 265/60/R18, ended up getting another set of the same for a mate with a 120 but had to go to 2 stores to find them again.
Also try Gumtree or eBay as there was a guy selling them in various different sizes around Ferntree Gully way, new and used.
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