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Kabirsky Profile
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Date Registered: 02-2016
TOTAL POSTS: 7
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off road tyres t31


Hello everyone,
I just bought bfg KO2 225/65 r17 tyres for my T31 after installing la lifting kit from Pedders with a 1,75 inch (45mm)lift. They fit very well, no rubbing on full lock. I am using the car on-road 70% and off-road 30%, and I do not want to change tyres every time I go off-road.

My concern and question is about the wear of the bearings using off-road tyres on a T31. Before I had standard 4x4 225/60/r17 and now they are slightly bigger and heavier.
Do the increase in size and weight of the tyre influence the wear of the bearings? Are there any off-road bearings or any other kit that will prevent the fast wearing of the bearings?
What is your experience about this?
Thank you all for your time and advice.

Last edited by Kabirsky, 7/Jul/2016, 3:46 pm
7/Jul/2016, 3:39 pm Link to this post Send Email PM   Send Private Message Blog
 
Wiz Au Profile
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Date Registered: 06-2017
Location: Canberra, ACT
TOTAL POSTS: 185
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Re: off road tyres t31


I would have to look up the specs on the bearing, but considering others I have checked, the bearings are usually well over-rated for the application, and the small extra weight/leverage/newtons of force increase from the larger heavier tyres should be miniscule compared to the bearing's rated load capacity. And no, there's no such thing as "4WD bearings", there are just different categories of bearings, like the type of seals used, and the 'clearance', like "C3". I can't think of anything other than changing the dimensions of the bearing that would increase the load capacity, including 'way out there' things like ceramic rollers instead of steel.

If anyone knows the bearing number, I'd be happy to look up the specifications from a couple of different manufacturers. (Nissan do not make their own custom bearings, no car manufacturer does. They will be something like SKF, NTN, Nitto, Timken, Denso, something we can find.)

---
2004 T30 series II, Ti (now sold)
JRR50 Pathfinder, QD32ETi Turbo Diesel, with 'lots o fruit'.
2012 Jeep Cherokee KK CRD Limited is current ride.
Will be looking for a white or silver 2011-2013 T31 TL (Diesel) to "pimp out".
8/Jun/2017, 11:31 am Link to this post Send Email PM   Send Private Message Blog
 
WMOV Profile
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Date Registered: 07-2016
TOTAL POSTS: 10
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Re: off road tyres t31


I have been running 225 70 17 tyres for about 80k km and no issues with bearings.
I do think it has sped up the softening on the control arm bushes with the extra leverage, however it has 140k on it now and have not had to change anything, and i do give it a fairly hard time too.
I think you will be alright to use them all the time.
BTW mine isn't lifted.
19/Jul/2017, 4:29 pm Link to this post Send Email PM   Send Private Message Blog
 
H4MM3R Profile
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Date Registered: 12-2017
Location: Brisbane, QLD
TOTAL POSTS: 9
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Re:


Kabirsky

Any pics of your lift? I have a T31 looking at new tyres now... not sure to stay with 17 or go down to 16 and a bigger tyre.... clearance seems to be a factor... what does the 45mm lift look like and can you go higher?

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Nathan (HAMMER) - I.D. X-5310
2010 T31 Petrol Series 3 ST-L 4x4
29/Dec/2017, 10:20 am Link to this post Send Email PM   Send Private Message Blog
 


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