Custom Wheel Specs: Rotiform Six (3 Viewers)

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The stock LC 18's weigh about 27.5lbs each according to this thread. Stock Dunlop tires are 41lbs so you're looking at nearly 70lbs for the factory 18" setup. Using the same links 16's are around 62lbs per corner stock, problem is that most A/T's for 16's are E load so there goes your weight savings. Factory offset isn't ideal for most people so you could add spacer weight to those numbers as well.

Thanks for the info. Updated my post to ~62LBS My current SCS F5 setup with Cooper MTP 285/75/R16 weighs in at ~62.5 LBS

Did the transmission change with the introduction of 18's?
 
Thanks for the info. Updated my post to ~62LBS My current SCS F5 setup with Cooper MTP 285/75/R16 weighs in at ~62.5 LBS

Did the transmission change with the introduction of 18's?

According to Slee: Slee Newbie Guide to 100's

2003 is when 17's were introduced and that's when 5 speed autos were introduced, with 18's as optional.

Engine output was increased to 235hp, diff gears changed to 4.1 ratio
 
Hey mud:

If you had the ability to design a wheel and choose the specs perfectly for a 1998 (100 Series) w/ 4.88 gears, 2" lift .. Land Cruiser, what would the specs be?

The use is highway to the trail and trail running across the Rocky Mountains.

Is the perfect wheel a 16", 17", 18"?
Is the perfect width 8", 8.5", 9"?
What about offset? Slee seems to like +25mm?
And what tire could we fit under there, 285/75/r__?

I know, loaded question - but I am a wheel guy. Have always run Volk Racing wheels on my rigs and cars - but it would be really sweet to take the plunge on a custom setup to create the perfect spec'd wheel for the 100 series platform. If the setup isn't custom, I will probably place an order for 18x9.5 +20 Volk TE37xt M-Spec in Blast Black.

JR
17 x 8 +25 offset = 5.48 back space


17 x 8.5” +25 offset = 5.73 back space


18 x 9 +25 offset = 5.98 back space

When comparing wheel offsets- keep wheel widths in mind

+25 offset on 8" width wheel is equivalent to +35 on a 9" width wheel
or
+25 offset on 9" width wheel is equivalent to +12 on a 8" width wheel


Here are pics of 9" wheel with +25 offset with 295/70-18 MT's- the poke isn't excessive- I don't get a lot of slop on the side of the truck with daily driving

1647707573157.jpeg
1647707617826.jpeg
 
17 x 8 +25 offset = 5.48 back space


17 x 8.5” +25 offset = 5.73 back space


18 x 9 +25 offset = 5.98 back space

When comparing wheel offsets- keep wheel widths in mind

+25 offset on 8" width wheel is equivalent to +35 on a 9" width wheel
or
+25 offset on 9" width wheel is equivalent to +12 on a 8" width wheel


Here are pics of 9" wheel with +25 offset with 295/70-18 MT's- the poke isn't excessive- I don't get a lot of slop on the side of the truck with daily driving

View attachment 2956820View attachment 2956821
oh hell yes .. this was the response I was looking for.

Thank you so much for taking the time to put that together.

Cheers - I owe you
 
abuck99's calculations are correct and backspacing measurement does have value... especially when trying to clear tie rods and such. But whether the wheel is 8" or 10", the tire will center itself on the wheel. The main point of contact/interference is (1) the tread shoulder. And the main factor that will determine handling is wheel offset.
 
abuck99's calculations are correct and backspacing measurement does have value... especially when trying to clear tie rods and such. But whether the wheel is 8" or 10", the tire will center itself on the wheel. The main point of contact/interference is (1) the tread shoulder. And the main factor that will determine handling is wheel offset.
Yes - I think something that isn't discussed enough on this forum (4x4 in general) is the scrub radius as it can have a dramatic affect on the overall handling of vehicles.
 

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