Author Topic: Largest tire Size you can Fit on a 86 4runner ifs  (Read 19575 times)

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19864runner

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Largest tire Size you can Fit on a 86 4runner ifs
« on: Oct 03, 2011, 06:10:51 PM »
It is a 1986 4Runner that has 2 in add -on leafs in the rear and front turned up torsions to make it sit level. It has 31x10.50 tires on 15 inch rims and 1.5 backspacing pro comp rims. Whats the biggest tires i can run also has 4:56 gear front and rear

sckid831

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32's or 33's. 35's rub

TacoRunner

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I did 35 with no lift on a buddies truck once.
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19864runner [OP]

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So What so people vote the most for 33x10.50 or 33x12.50????????

sckid831

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10.5

Snowtoy

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You can usually clear 32x11.50 on 8" rims with just a little body seam adjustment.  You might be able to clear 33x12.50's with same inner fender/fire wall mod, with what you have now.
« Last Edit: Oct 06, 2011, 06:02:19 PM by Snowtoy »
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

19864runner [OP]

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ok nice to know

crazydubman

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33x12.5 no problem stock height front and 6 inch shackles in the rear (1.5" lift). Think the wheels are about a 3.75 BS 15x8 or 8.5.

flattened pinch seam and trimmed 1" off the fender edge to get rid of the angle on the bottom. They fit like a glove. Tempted to try 35's but stock gearing still works well on the 33's. I have the 3.slow and can still get up and go decent.









Would have smacked the shackle here if i was still on my 32's


Also would have done way more damage to the skid if i was on smaller tires.  :thumbs:




35's would be nice but saving a tire swap for the new axles.
« Last Edit: Oct 14, 2011, 01:19:33 PM by crazydubman »

19864runner [OP]

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Did you have to cut the front fenders in the because they rubbed or hit? I didnt really want have to cut my front fenders.

crazydubman

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I had trimmed the fenders because the rear of the fender by the pinch weld was hitting slightly. its the same distance as the pinch weld so it was pretty much inevitable.

I only trimmed the original fender line off. I can take closer pictures if you want. Could have probably just trimmed off the angle on the edge and been ok. You should be able to get away with just trimming that rear corner off.

The future plans for my truck will likely require a more extensive cut so i wasn't concerned.

The rear I could have gotten away with just that bottom angle as with the offset of the wheels would have made the outer sidewall rub under full articulated compression.

crazydubman

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come to think of it i had to trim with the 32x11.5's i had. I did cut down my bump stops so that might have contributed to the rubbing.

Then again my torsion bars are not wound up at all. with yours wound up you might be fine.  :beer:

19864runner [OP]

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ya more picture  would be great :thumbs:

crazydubman

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ok so hopefully these pictures are what you were looking for





I may not have had to cut that much out of the corner but thats what i thought flowed best with the body line.







This is how much i cut the bump stops



How the tire sits in the fender well





how the rear fender was cut and how the offset is with the tire. You can see i only trimmed about 1/2" off the rear. It was all i could take off on the passenger side because of the gas door so i matched the drivers.




crazydubman

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you know what....... i totally forgot i have a 1" body lift to make it easier to work on things around the frame.... That might complicate things a little more with your setup.  :smack:

JJtruggy

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My buddy ran 34x10.50 LTBs on an 1986 ifs 4Runner stock,
then a set of 33x12.50 Geolanders both tires worked well...

Then he did an inch of shackle rear and baja fenders front and has run 35 all terrains

knucklebuster

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I have an 86 4runner when I bought it the first thing I did was put on a set of 32/11.5/15 all terrains.
a year later I went to 33/10.5/15 toyo mt's, im still on stock wheels and they rub a bit on the swaybar at full turn.

The only mod I have is 1.5" lift shackles to raise the back (sagging springs) to stock height.
Its not the cheapest but it is the easiest 2" lift you can buy!

Zs Confederate Toy

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I squeezed some 33s onto my 87 PU. They rub at full crank but work pretty well
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hansi530

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heres mine when it was stock with 33x12.50 only rubbed the bed until i used a hammer
88 custom cab: http://board.marlincrawler.com/index.php?topic=88026.new#new
shitlbuffout-A saying among 4x4 and off road enthusiasts. Its said after damage normally cosmetic to minor parts damage has occurred on there rig or vehicle. Shitlbuffout is :pokinit: will buff out as in the :pokinit: being the damage will buff as in painted over cleaned polished or "buffed" out.

86yoter

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i ran 32 x 11.5 on my ifs with the add a leafs in the rear and the torsions all the way up.  it barely rubbed in the front. while wheeling in a turn with one side of the front sucked up. the rear would roll all the way in the wheel well no rub
hope that wasn't to late :beerchug:
86' runner nothing special

Rocksurfer

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I don't suggest cranking the torsion bars all the way in without mods such as a spacer and/or flat bumpstops. Not only does it make for a stiff ride since you are sitting on the upper bumpstops but also overloads the bars and could bend them or the arms and sometimes breaks the cups. I always left room on mine with a spacer and flat bumpstops so that the suspension was still able to travel.
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