Gawry,
Even thou the topic spans 3 different areas, it is primarily about fitting 33" tyres and thats why I have moved it to the Tyre Section.
Alot of the info you are seeking is on the site, it sounds like you have searched but need help finalising everything.
2" Suspension Lift-You'll be able to fit
33/10.5x15 tyres on factory
15x7 SR5 (steel or alloy) +30 offset wheels.
-33/10.5x15 tyres are usually about 32.7x10.5 in dimensions.
-You'll have to remove the front mudflaps but that should be ablout it due to the narrowness of the tyre and the factory offset keeping the combo within the guards.
Link to Thread on 33/10.5x15 Tyres -
http://www.newhilux.net/phpbb/viewtopic.php?f=27&t=5214Pic below of DLUX's Hilux with close to a 3" lift and 33/10.5x15 KM2's on 15x7 SR5 wheels -
-Thought I'd also add that 255/85x16's can be fitted on 16x7 wheels.
-255/85x16 are approx 33.3 - 33.5" diameter by 10.2 wide.
-16x7 with +20 or +15 offset is ideal. Prado 90 GXL 16x7 steel rims are great for this.
Link to Thread on 255/85x16 Tyres -
http://www.newhilux.net/phpbb/viewtopic.php?f=27&t=3572Here is JustFishn's Hilux with 2" lift and 255/85x16 BFG KM1's -
3" Suspension Lift-You'll be able to fit
285/75x16's and will require between a +15 to zero offset
16x8 wheel preferably.
-If you have a decent alignment done you should get away with not touching the bodymount.
-You will need to remove the front mudflaps, trim the guard liner and flares if they are fitted on the bottom corners.
-If you have a front bumper bar, you'll need to trim the lower corners from that too to allow you to turn the wheels.
-If you have an ARB bar you'll need to modify the splashguards under neath to allow the tyre to compress.
-You'll be able to fit
305/70x16's thou a little more difficultly due to their extra width. Id go for a zero offset 16x8 wheel atleast. Due to the diameter and width it will touch the swaybar "slightly" on full lock.
-You'll need to trim the front bodymount.
-You'll need to bash the pinch weld back.
-You'll also find the same issues with 33/12.5x15 tyres fitted to 15x8 wheels as you will the 305/70x16 tyres.
Link to 15x8 Steel Wheels that fit thread -
http://www.newhilux.net/phpbb/viewtopic.php?f=27&t=6221Here's an explanation of what I did in regards to trimming -
Heres my trimming pics and some detailed explanations as to what I did.
First of all the pics-
A is the pinchweld....I tapped that back about halfway just to get the sharp edghe out of the way as under full compression there was a chance of it hitting the tyre. Before tapping that back, I got a box cutter and sliced the inner guard liner the length of the line at
A on the outer side of the pinchweld and mounted it fuirther back with a self taper going through the pinchweld on the inner side before tapping it back.
B is the inner side of the flare that I trimmed as much as I "reasonably" could to help clear the tyre under compression.
C is where I used Black Toyota Threebond Sealant to help seal the gaps that were there to stop crap building up in there.
D is the bottom corner at the rear of the guard where I put 2 or 3 slices into the actual quarter panel and folded it up and inwards towards the rear giving more clearance and a smooth edge. Also cut a little piece off the bottom corner of the flare at an angle.
Next pic is what I did with the splash guards below the ARB bar....
I took them off and bent it up almost 2 inches shorter and then pinned the inner guard liner to it....wasnt easy to attach the guard liner to it as it was a bit further forward than the guard liner curves to.
On the other side, passenger side, I dont have a pic of it here but I did the same thing but had 2 split the bent up bit in two because of the washer jet bottles location, so the inner half I bent up not as much as the oputer half. Hope that makes sense.
I will be relocating the washer bottle at some stage.
The tyres dont hit the body mount, but saying that yesterday I did clip it off road when landing hard after launching out of a deep rut with a tree root running across the top of it.
Link to Fitting 33" Tyre Thread -
http://www.newhilux.net/phpbb/viewtopic.php?f=27&t=3538Link to Bodymount Chop Thread -
http://www.newhilux.net/phpbb/viewtopic.php?f=41&t=7273With a 3" lift you will get away with not having to lower the front diff thou the option is out there with several companies.
The other thing with 33" tyres (primarily 285's and wider) is that if your suspension allows
full bump travel (when the lower control arms bottoms out on the rubber bump stop on uptravel) the tyre will touch the flare/guard. Not hard but it'll touch. This is a reason why I fitted a 6mm spacer under my bumpstop to limit uptravel by 12mm which was enough.
Link to bumpstop spacer mod -
http://www.newhilux.net/phpbb/viewtopic.php?f=41&t=45104" LiftsThere are 2 forum vendors selling 4" lift kits. Ultimate and Monster Rides...both are good products that work slightly differently for one another. Best to contact them direct to get their opinions.
Ultimate Suspension -
http://www.newhilux.net/phpbb/viewforum.php?f=42Monster Rides -
http://www.newhilux.net/phpbb/viewtopic.php?f=46&t=8258BodyliftsI think a (personal opinion only) that if cutting and trimming alot isnt you cup of tea a typical 3" suspension lift coupled with a 1" bodylift would be ideal. The 1" bodylift would allow the 33" the full uptravel without hitting the guard on your usual type of suspension lift.
That being said a 2" suspension and 2" bodylift would yield very similar results.
Link to the Bodylift Bible -
http://www.newhilux.net/phpbb/viewtopic.php?f=28&t=3816GearingDepending on what vehicle you have, auto or manual. The manuals are factory geared to 3.5:1 so moving up to 3.9 factory gears from a Prado120 would suffice with 33" tyres.
Auto's come with 3.73:1 so upgrading to the factory 4.1 Prado 120 gears will suffice.
Link to the Gearing Bible -
http://www.newhilux.net/phpbb/viewtopic.php?f=12&t=3554EngineeringEngineering regulations are different in each state so best to consult your local traffic authority concerning any mods you wish to do. Also remember some insurance companies may not allow some of the mods you wish to perform.
Conclusion33's are a great mod if your willing to go down that route. Without changing the gearing your final drive will be out of wack. Some may handle it some may not. Ideally offroad you'd want your low range back where it should be so you can safely descend steep terrain.
The lift and load will reduce your fuel economy aswell as your braking performance. Factors to keep in mind.
Hope that helps.