Welcome to the forum bud.
33inch is the largest tyre you can legally go. No one will engineer anything bigger. Its the law. Only Mark's Adapters can with their Portal axles. Whom Enklmen Engineering do their work. I rany them and they flat out said no for 35's, unless you get the portal kits from Mark's.. I'm going through this right now. And get the same answer from everyone I call.
See here... https://infrastructure.gov.au/roads/.../vsb_ncop.aspx
Then download NCOP11Section LS steering and suspension then refer to page 76, section 4.
Got the papers to prove this? Hang on. Whats a D70? Lol.
A truck is not a Patrol or passenger vehicle, so that doesn't count.