Hzj75rp rim question

[Hotshot993]

Hey guys,
Just joined up wanting to ask a question about rim offsets. I've looked on the Internet a lot and can't find much help. At the moment I think I have 15x8 rims on with 285/75r15 mud tyres. I'm not sure what the offset is but I'm wanting to increase the offset so the tyres are flush or even a little bit wider than the flares and tray. Is there a certain rim with standard offset that does this. Or do I have to try and measure it all up.
Also I will be posting more pics up of my car tomorrow when I get on my computer as I'm just on mobile at the moment. The picture below was when I got it about 3 weeks ago.
Thanks for any help and looking forward to all the information and help I can get from this forum in the future.

 

[Gun Runner 5]

While I can't help you with your offset question, I can welcome you to 'Mud.
Nice looking 75 Series.

 

[dadinabarrel]

I just fitted 38mm spacers, works a treat

 

[Hotshot993]

I'm not sure if I can us wheel spacers in queensland. Just heard a little but I don't know if that's true at all. And that looks good. I like when the wheels fill out the flares.
And thanks for the welcome.

 

[Blade]

I got J8 16x8 with Offset 0 and they were rubbing on the chassis and on the front on the tie rods!
I installed 30mm spacers on the front and now it's just as you would like it...
so I guess something around 30mm Offset is what you need. But I would verify this before orderning new rims.
Oh and I got 285/75R16.
Here a picture I just made yesterday:

 

[Locked79]

Neg 44's will give you a nice wide stance. About 3.5" wider overall