Here is a rear view of the 33x12.5s on 8s:
[Linked Image]

Here is a flexed view of 33x12.5s on 10s in the back, 4" BS:
[Linked Image]

Here is a view of 32x11.5s on stock rims, flexed...tire hits rear of frame:
[Linked Image]

I have other views, too, but these show the limits I've found for my truck. <img src="/forums/images/graemlins/wink.gif" alt="" />

1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya