Ok, let's see if I've got this right, I don't know why, but I'm really finding it hard to get my head around all this tyre/rim size business.
If I have it correct ...... 265/75 have a diameter of 808mm which = 31.8" and are 30mm wider than the 235's I have at present. So when someone talks about 31" they mean the same as 265/75's?? Yes?
YES
So if I want to run 265/75’s I need to get rims that are offset enough to give clearance from the chassis to avoid as shown in Macca's pic? Yes?
Yes but you will need wider wheels to go to wider tyres anyway
If I am correct, unfortunately this still leaves me confused. The clearance between my current tyres on Nissan split rims (I assume they are Nissan OE) is a good 70mm. Assuming that the split rims have the same offset as the tubeless Nissan OE rims, & that Macca's chassis rubbing issue was with tubeless Nissan OE rims, then it seems logical to me that fitting tyres that are just 30mm wider than those I have (and which have a smaller diameter - 808mm vs 815mm on the 235/85's) would only 'intrude' an additional 15mm into the 70mm clearance I have, thus leaving plenty of clearance.
The only explanations I can think of are
A) the split rims have a different offset to the tubeless rims.
B)Macca's rims were not OE Nissan
C) my split rims are not OE Nissan
D)Nissan OE rims come in varying offsets. (and widths)
E) All of the above
Probably what would simplify things for me would be if someone could just tell me exactly what size 16" rims (width & offset) I need to run 265/75's on my truck without having the tyres stick out past the wheel arches any more than necessary & without rubbing on the chassis. .......... PRETTY PLEASE!
16x8, neg10-13 offset and some BFG 265/75 KM2's
And if anyone cares to comment on my inflation pics still, I'd appreciate it.
Ta,
Cuppa