LC 100 series tyres.

Submitted: Monday, Jun 24, 2013 at 13:15
ThreadID: 102927 Views:2364 Replies:5 FollowUps:19
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Can anybody tell me if 285/75/16 tyres will fit on the front of a LC 100 series with IFS. If not what is the maximum size that people have had on them.

Thanks Ross.
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Reply By: bobsabobsa - Monday, Jun 24, 2013 at 13:28

Monday, Jun 24, 2013 at 13:28
Yes they will fit, but if you are going from std 17"
the speedo will be out and you need to change the transducer cog
a very simple job
bob
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Follow Up By: Member - Rob D (NSW) - Monday, Jun 24, 2013 at 18:02

Monday, Jun 24, 2013 at 18:02
I have 285/75/16 fitted to my IFS LC100 after I ditched the original 17 inch rims.

Bob can you please tell me how to change the transducer cog and where to get one from.

If you relax at a faster pace you can get more relaxation in for a given time.
Regards Rob

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Follow Up By: bobsabobsa - Monday, Jun 24, 2013 at 20:09

Monday, Jun 24, 2013 at 20:09
This for a 5 speed auto box ,but I think would be the same on the manual as well
On the side of the gearbox near the rear is the transducer for the speedo
It has a 10 mm bolt holding it in place undo this and pull out the transducer,a little bit of oil will come out but nothing to worry about, the cog sits on the end and has a circlip holding it on
remove and replace with the one to suit the larger tyres
part number for the new cog is from Toyota

Speedo gear part number 33403-69225

Bob
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Follow Up By: Member - Rob D (NSW) - Monday, Jun 24, 2013 at 22:51

Monday, Jun 24, 2013 at 22:51
Thank you very much Bob, greatly appreciated.

If you relax at a faster pace you can get more relaxation in for a given time.
Regards Rob

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Follow Up By: Member - PJR (NSW) - Thursday, Jun 27, 2013 at 11:30

Thursday, Jun 27, 2013 at 11:30
Is the overall diameter of the tyre the same if you have 16 or 17 inch rims and a 285/75/xx tyre fitted?

Phil
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Follow Up By: bobsabobsa - Thursday, Jun 27, 2013 at 12:27

Thursday, Jun 27, 2013 at 12:27
No,
275 65 17 std on the 2006 with a 5 speed auto
285 75 16 are taller, and the speedo will read slow,
hence the change of the cog
this cog will give the correct reading at 100 kph by the gps for 285 75 16
with the 5 speed auto setup
I did have the diameter difference but cant find it now
bob

just did a check in the car and the
PART NUMBER IS
33403-69305

for the 285 75 16

Std is a 32 tooth
and you need a 31 tooth

sorry Rob
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Follow Up By: bobsabobsa - Thursday, Jun 27, 2013 at 12:29

Thursday, Jun 27, 2013 at 12:29
Just go by the part number
My counting might be out
wish we had a edit button
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Follow Up By: Member - Rob D (NSW) - Thursday, Jun 27, 2013 at 12:35

Thursday, Jun 27, 2013 at 12:35
Thank you Bob
If you relax at a faster pace you can get more relaxation in for a given time.
Regards Rob

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Follow Up By: Member - Rob D (NSW) - Thursday, Jun 27, 2013 at 13:00

Thursday, Jun 27, 2013 at 13:00
Hi Phil,

A tyre marked 285/75/16 means the tyre width is 285mm, the 75 means that the tyre height is 75% of the width or 0.75x285 = 213.75mm (8.415 inches). The 16 refers to the rim diameter in inches. (Noting that the tyre manufacturers have mixed metric and imperial measurements.)

To get the wheel diameter you need to add the rim diameter to twice the tyre height or 16 + 2 x 8.415 = 32.83 ( a nominal 33inch tyre).

If you had a 17inch rim rather than a 16inch rim then the overall tyre diameter would be one inch larger.

If you relax at a faster pace you can get more relaxation in for a given time.
Regards Rob

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Follow Up By: Member - PJR (NSW) - Thursday, Jun 27, 2013 at 13:25

Thursday, Jun 27, 2013 at 13:25
Thanks Bob

Mate I have been retired too long. I forgot to make them all metric or inches.

tyre diameter = rim size + ((profile/100) * tyre width)

width profile rim tyre height diameter (inches)
285 75 16 8.42 32.83
265 75 16 7.82 31.65
285 75 17 8.42 33.83

Phil
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Follow Up By: Member - PJR (NSW) - Thursday, Jun 27, 2013 at 13:31

Thursday, Jun 27, 2013 at 13:31
I could do with an editor as well.

I will make it a diagram then.

Phil

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Follow Up By: Member - PJR (NSW) - Thursday, Jun 27, 2013 at 13:36

Thursday, Jun 27, 2013 at 13:36
Not my day guys. Even mucked your name up Rob.

I hope you enjoyed the Cape and I am getting that spare wheel lifter design of yours made up as we "speak". Still waiting to find out how Tom wants me to pay for the Jackstrap though. He is a little slow on the mails. But that doesn't matter we are not going anywhere remote for a while.

Phil
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Reply By: MEMBER - Darian, SA - Monday, Jun 24, 2013 at 17:57

Monday, Jun 24, 2013 at 17:57
Don't know if you have been to LCool, 100's section here.Some members there will know that tyre topic back to front..... but search first :-o).
AnswerID: 513736

Reply By: Member - PJR (NSW) - Monday, Jun 24, 2013 at 19:53

Monday, Jun 24, 2013 at 19:53
Yes they will fit and are legal on my 2005 100 IFS. With the 285's on the speedo reads 90 when we are doing 100. I haven't changed the cog. Not when I have two sets of tyres and change them depending on the destination. One set is 285 and the other is 265.

I just remember it is out when the 285's are on the car and I also use the GPS.

Phil


Phil
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Reply By: Aussi Traveller - Monday, Jun 24, 2013 at 20:40

Monday, Jun 24, 2013 at 20:40
They come standard with 285 75 16s.

Phil.
AnswerID: 513749

Follow Up By: Member - PJR (NSW) - Tuesday, Jun 25, 2013 at 08:22

Tuesday, Jun 25, 2013 at 08:22
Not all. Mine came with 265's.

Phil
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Follow Up By: baz&pud (tassie) - Tuesday, Jun 25, 2013 at 09:28

Tuesday, Jun 25, 2013 at 09:28
Don't get insulted, but i didn't mean to thank you, i meant to click follow up post to say that i agree with you that some 100s came out with 265s standard.
We also have 285s fitted, and used to run 305s.
Baz
Go caravaning, life is so much shorter than death.

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Follow Up By: Member - David M (SA) - Tuesday, Jun 25, 2013 at 09:32

Tuesday, Jun 25, 2013 at 09:32
G,day Phil. Would be interested to know what it says on your compliance plate. Mine recommends 275/70. 16 which I have been running since I bought it. 05 T/D Man.
Cheers, Dave.
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Follow Up By: Member - PJR (NSW) - Tuesday, Jun 25, 2013 at 09:33

Tuesday, Jun 25, 2013 at 09:33
305's are not allowed on our car. 265's will do us for most of our drives. But for some trips we put the 285's on. Handy having two sets of rims.

No worries.

Phil
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Follow Up By: Member - PJR (NSW) - Tuesday, Jun 25, 2013 at 09:50

Tuesday, Jun 25, 2013 at 09:50
Hi Dave

Same here. 275/75/16. 2005 auto 4.2TD. The speedo sits smack dab in the middle of the 100KPH marker when the GPS displays 100KPH.

We bought it second hand. Maybe the bloke before us changed. He was pretty much a bitumen 4WDer so I don't know and no noticeable off road marks like bush pin striping or underbody marks etc.

Phil
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Reply By: Member - nick b - Tuesday, Jun 25, 2013 at 13:32

Tuesday, Jun 25, 2013 at 13:32
Hi Ross : Yes will fit But you can only increase by 15 mm in height over all in aus from the STD size on the tyre plate . ignore all the B.S on internet re larger than that !!! check with your police .... and you will most likely use more fuel , speedo as other say , ours is the wrong side of 7 k's out :-(

P.S we are running 285/75/16 on our 100 series :-)

cheers
Cheers Nick b
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Follow Up By: Member - David T (SA) - Wednesday, Jun 26, 2013 at 15:01

Wednesday, Jun 26, 2013 at 15:01
Hi Nick
If you allow for the odometer to be out by the same percentage as the speedo then the extra fuel consumption is minimal in my experience.
Cheers
Dave.
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Follow Up By: Member - nick b - Thursday, Jun 27, 2013 at 11:01

Thursday, Jun 27, 2013 at 11:01
Hi Dav , yes I would agree to a point .
Its hard to understand why it is , but in my experience this vehicle (v8 petrol ) & my triton both have used more fuel after putting larger tyres on .

cheers
Cheers Nick b
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Follow Up By: Member - David T (SA) - Thursday, Jun 27, 2013 at 11:19

Thursday, Jun 27, 2013 at 11:19
Nick
It could be a diesel thing. Just as a diesel has a lower increase in fuel consumption when towing or in sand compared to petrol. I put on bigger tyres as that was really the only way to improve clearance. If I'm being honest I also think it looks better but that wasn't the main reason:-)
Cheers
Dave
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