Tyre Size Decision - Landcruiser 300
Submitted: Wednesday, Dec 28, 2022 at 09:30
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sam s5
What are your recommendations for changing tyres on the Landcruiser 300 GX.
Stock tyres 245/75R17 - diameter - 799mm / 31.5"
Options:
265/70R17 - diameter - 803mm - 31.6"
275/70R17 - diameter - 817mm - 32.2"
70% road and 30% sand
Reply By: Member - McLaren3030 - Wednesday, Dec 28, 2022 at 10:52
Wednesday, Dec 28, 2022 at 10:52
Hi Sam,
Personally, whilst I do not own a 300 Series, and am just going on what I did with my 200 Series GX, I went with 285/70R17’s. You would need to
check the clearance under the front guards when turning and with the
suspension under load. I started with Coopers, but after too many side wall splits, have changed to Toyo Open County AT’s.
Macca.
AnswerID:
642404
Follow Up By: Bonz (Vic) - Saturday, Jan 07, 2023 at 12:54
Saturday, Jan 07, 2023 at 12:54
How have you found the Toyo's in mud Macca? Ive got them on my Troopy and have heard awful stories of them sliding downhill and very little traction even at 18psi?
Thanx
GWBonz
FollowupID:
922126
Follow Up By: Member - McLaren3030 - Saturday, Jan 07, 2023 at 15:34
Saturday, Jan 07, 2023 at 15:34
Hi Bonz,
I have been fortunate enough not to have had to travel through mud since fitting them. Travelled
the Tanami track, and an sandy access track out to
Middle Lagoon, no mud. Found them good on the gravel and the sand. I am heavy at 3.4 Tonne loaded, so did not go down too far for the gravel, from 42 front, and 48 rear on the bitumen, to 36 front and 38 rear on the gravel, and 26 front and 28 rear on the sand.
Macca.
FollowupID:
922133
Follow Up By: Bonz (Vic) - Saturday, Jan 07, 2023 at 22:58
Saturday, Jan 07, 2023 at 22:58
Thanx Macca. I’ve found them great on dirt and sand and on the road. Disappointed you haven't tried them in mud. If you could pop out this weekend and do so and report back Monday that’d be great. I’ll wait ??
Lol you have to laugh
FollowupID:
922134
Follow Up By: Member - McLaren3030 - Sunday, Jan 08, 2023 at 08:46
Sunday, Jan 08, 2023 at 08:46
Bonz,
No rain about this weekend in my part of the country, sorry. If you want a slightly more aggressive tread pattern, Toyo have an RT, or Rugged Terrain in their Open Country range. More aggressive than the AT, but not as aggressive as the MT. I seriously looked at them, but at the time, price was an important factor, and as I no longer travel the High County any more, chose the less aggressive AT.
Macca.
FollowupID:
922137
Follow Up By: Bonz (Vic) - Sunday, Jan 08, 2023 at 08:51
Sunday, Jan 08, 2023 at 08:51
yeah I have looked at those too, I had very luggy tyres are realised the noise from them for 98% of the time far outweighed the grip I needed for 2% of the time. I was looking for something like BFG All Terains (as they were not available -COVID eh) and the AT Toyo looked the goods. I am yet to try them in wet muddy conditions but theyre performing splendid everywhere else. As soon as you get rain, report beck! and thanks for the followup Macca.
Regards GWBonz
FollowupID:
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Follow Up By: nickb - Sunday, Jan 08, 2023 at 16:55
Sunday, Jan 08, 2023 at 16:55
I have had 2 sets of Toyo AT2, done a bit over 110,000km on them in total. Fantastic in gravel, rocks, wet/dry tarmac and they are pretty quiet too. Done some mud and they are not too good, as expected. The tread pattern isn't very aggressive so clogs up pretty quickly.
Also seem to trap the gravel in between the tread. When I do a tyre rotation I
check the tread/sidewalls and remove any stones lodged between the lugs, these tyres by far held the most stones between the lugs, also seem to release them while driving long after the gravel roads are behind us.
FollowupID:
922146
Reply By: Member - Wooly - Thursday, Dec 29, 2022 at 21:26
Thursday, Dec 29, 2022 at 21:26
I would go with the slightly larger diameter tyres, just to give you a little more clearance under the diffs.
As Macca has said however,
check that the front wheels still clear everything under load and sharp turns etc.
AnswerID:
642413
Reply By: Member - DOZER - Wednesday, Jan 11, 2023 at 14:14
Wednesday, Jan 11, 2023 at 14:14
what do the zx's come with? you will need 5 tyres too if you go up in diameter
AnswerID:
642582
Reply By: Member - Captain (WA) - Thursday, Jan 12, 2023 at 14:08
Thursday, Jan 12, 2023 at 14:08
What are you planning to do with the vehicle?
Given you on Exploroz, its not a Tooorak Tractor. But a big difference if doing a lap of Aus on the blactop with a van vs hard offroad on remote tracks.
On my LC200, I went up a tyre size and while it gave more clearance, it had an impact on fuel economy.
If a lot of beach driving and/or reasonable amount of offroad, would go for the 32". Otherwise if mainly blacktop and good gravel, stick to stock... the higher profile will help ride softness too.
Not only will bigger tyres have a fuel impact, they weigh notably more too.... but if off-road significantly, I would want the better traction performance.
Cheers
AnswerID:
642589
Follow Up By: Member - McLaren3030 - Sunday, Jan 15, 2023 at 08:51
Sunday, Jan 15, 2023 at 08:51
Hi Captain,
How do you calculate your fuel usage? If you use the vehicle odometer as the source of your distance travelled, with the larger size tyres it will no longer be accurate, same as your speedo is no longer reading the same speed as with the smaller tyres.
The best way to accurately record your fuel usage is with a gps device to record the distance travelled between fills.
Macca.
FollowupID:
922206
Follow Up By: Member - Captain (WA) - Sunday, Jan 15, 2023 at 13:04
Sunday, Jan 15, 2023 at 13:04
Hi Macca,
Yep, I agree.... I run a scanguageII thats been calibrated for distance and fuel usage.
I found the stock tyres over-read the distance by around 5-8% while the 285/70R17 BFG KO are virtualy spot on.
Cheers
FollowupID:
922213