rim offset, tyre dimensions HJ61

Submitted: Sunday, May 15, 2005 at 17:58
ThreadID: 23004 Views:7926 Replies:1 FollowUps:2
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Hi there,
I got second hand landcruiser (grey import from Japan) and just realised that the spare wheel is different than the main wheels. SO, I ended up with 4 alloy wheels, on which I could read the following:
Bradley IX
8JJx15
offset -25
PCD 139.7
The tyres are BFG A/T 32x11.5R15

The spare wheel is srteel:
T15x7-JJ
DOT 2 88

the fitted tyre is Desert Dueler (unused) 31x10.5R15.

Now, I went through many many posts on the web to find out wjat would all that mean and concluded that I should not mix these wheels (i.e. use the spare only at low speed in emergencies). HOwever, them I went and actually measured the tyres/wheels....

It turned out that all the wheels are about the same overall diameter!!!30 inches!!(not 32 as BFG should be-pressure in the tyres is 36PSI). The rim offset on the main aheels does not make sense-I measure PLUS 21mm... On the spare, it is +22mm, which would mean that I could actually use the spare wheel (the width of the spare tyre is different than for BFG's)....

Going to BFG's web-site, the overall diameter for this size is atated as 32" -this simply cannot be the case, the tyre on my truck is less than half-worn and 5cm is missing to make up to the stated 32".

I would appreciate an advice what to do (we are going to Kimberley this June and would like to buy another spare wheel):

a) use the existing wheels and get another with BFG tyre and stated offset of -25mm, would such wheels be available? the ones on the truck I found only in Japan. Alternative would be to get a spare tyre and beadbreaker or tyrepliers...

b) Buy an altogether new set of 5 wheels. What kind of price I would be expected to pay for steel wheels ? IF the wheel offset on the available wheels is not -25mm (or whatever it really is), should anything on the suspension/steering be changed?
I suspect that this offset is needed to enable fitting of wide 11.5" tyres...

I am sorry for going on for this long, I ma VERY frustrated with all the mess. I am not even sure what is the legal diameter of the tyre for this truck...

thanks,

Joseph

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