Re: '93 Grand headlight adjustment
If I'm not mistaken, it's the same for all year ZJs and you're going to need either a Torx T15 or a T20. It's one or the other, I can't remember which. I want to say T20 but it may be a little smaller. There really isn't a substitution for it. You may be able to use a flat head screwdriver, but that may damage or strip the Torx head. I've seen some people also jam a hex key/allen wrench into a Torx head. Although that may work, I don't recommend it.
1997 ZJ TSi - 5.2L, 242, ~4" of IRO lift, IRO short arms & adj. TBs, JKS Discos & BPEs, DT3000s, Aussie out back, sliders, OEM skids/hooks/hitch, 31" Duratracs, 15x8 Stealth Crawlers, Niner grille, Magnaflow stuff, HO alt, "mean eyes", tinted signals/tails, clear corners, sound system, cloth seats