Thanks for the advice guys!

It's a 1983 Toyota Hiace (Wow, I know.) They were driving it and according to them it just cut out while they were driving it and they were unable to start it up again. The engine doesn't turn over anymore even when it’s attached to a power source. Hope this is enough all, Please let me know if not.

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Front and back Whiteline Swaybars, GFB StealthFX BOV, 3" Stainless Steel TBE.