Author Topic: Too much tire for IFS  (Read 1636 times)

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D-runner

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Too much tire for IFS
« on: Sep 18, 2005, 11:41:19 AM »
I am looking for a set of new tires for my 4Runner and have the choices narrowed down to two. Goodyear MT/R or Toyo Open Country MT. The following is the specs on the tires.

Toyo Open Country MT – 35x13.50R15
Overall Diameter – 34.8”
Overall Width – 14.4”
Max Load – 2600 lbs.
Tire Weight – 84 lbs.

Goodyear Wrangler MT/R – 35x12.50R15
Overall Diameter – 34.7”
Overall Width – N/A
Max Load – 2535 lbs.
Tire Weight – 55 lbs. with raised white letters and 65 lbs. w/o raised white letters.

I plan on running them on Champion Beadlocks, 15x10 for the Toyo’s or 15x8 for the Goodyear’s. I plan on SAS the 4Runner next year but I need new tires now and I favor the Toyo as they ride great and are fairly quiet for a MT tire. My truck is a DD and I run trails maybe once or twice a month.

The specs on the truck:
Front: 4” Pro Comp lift with 1.5” BJ spacers. Rancho torsion bars and 5.29 gears.
Rear: 5” Skyjacker springs with 1” block. 5.29 V6 ARB and FF rear axle.

My main concern is the weight of the tires on the IFS. From what I have found out is that 35’s are the largest tire that I can run with the IFS. Will the IFS last with moderate wheeling running the heavier Toyo’s or should I go with the lighter MT/R’s. I know that the SA trucks have no problems running heavier tires but I know no one who is running this tire on a IFS.
Adam W.
87 4Runner SR5 - 22RE w RV head & TRD Cam, LCE header, W56HD, 4" Stage II, 1.5" BJS, Rancho T-bars, F 5.29, R 5.29 ARB V6 FF w LC disks, 35" MT/R's

85 4Runner frame, 5" Marlin springs, 5:29 ARB HP front. Work in progress - Always!

Rebeltilldeath3

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Re: Too much tire for IFS
« Reply #1 on: Sep 18, 2005, 11:52:22 AM »
My tires are about 55lbs and I have no problems.

D-runner [OP]

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Re: Too much tire for IFS
« Reply #2 on: Sep 18, 2005, 12:22:47 PM »
Mine are just under 50 lbs (33x12.50R15) but I want to add another 30 lbs.  I was thinking of adding a Idler Arm Gusset from Downey to help strenghten the idler arm.  Anybody running the Toyo's on a IFS rig?
Adam W.
87 4Runner SR5 - 22RE w RV head & TRD Cam, LCE header, W56HD, 4" Stage II, 1.5" BJS, Rancho T-bars, F 5.29, R 5.29 ARB V6 FF w LC disks, 35" MT/R's

85 4Runner frame, 5" Marlin springs, 5:29 ARB HP front. Work in progress - Always!

Rebeltilldeath3

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Re: Too much tire for IFS
« Reply #3 on: Sep 18, 2005, 12:27:19 PM »
I should be running 35" Toyos soon, whenever they get shipped here.

Rocksurfer

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Re: Too much tire for IFS
« Reply #4 on: Sep 18, 2005, 02:29:34 PM »
My brother ran BFG 35's on his IFS 4Runner never had a problem, then he went to 33" mud bogger's and broke several half-shafts. But they were the Downey half-shafts and they were never any good for him. Don't know if it was the weight or increased traction but he did have 33' TSL Thornbirds and never broke one on stock half-shafts. I think the Downey's were weaker than the stock CV's.
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Skinny_Pedal

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Re: Too much tire for IFS
« Reply #5 on: Sep 18, 2005, 04:44:50 PM »
I think the Downey's were weaker than the stock CV's.


sucks when you pay for a heavy duty component and it can't even hand with stocks ability. reminds me of all pros birfields :lipsrsealed:
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Rocksurfer

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Re: Too much tire for IFS
« Reply #6 on: Sep 18, 2005, 04:50:26 PM »


sucks when you pay for a heavy duty component and it can't even hand with stocks ability. reminds me of all pros birfields :lipsrsealed:

Even worse when he took them back for warranty they asked him what he was running them on. He told them and they said that the tires were too big and they were designed for hi-speed, and that they would warranty them once and then he was on his own. Problem here is that he told them what he was running up-front. :bull crap:
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hudlenutz

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Re: Too much tire for IFS
« Reply #7 on: Sep 19, 2005, 10:22:52 AM »
I'd go with the tires that you'd be most happy with after you've done the suspension on your truck.

For the extra size/weight, you could get/make one of these:



and maybe carry a spare set of ifs axles with the stud replacement if you're wheelin hard.

D-runner [OP]

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Re: Too much tire for IFS
« Reply #8 on: Sep 19, 2005, 12:45:41 PM »
I've been looking at the Total Chaos Idler arm.  Lot of money but worth it if it holds up.
Adam W.
87 4Runner SR5 - 22RE w RV head & TRD Cam, LCE header, W56HD, 4" Stage II, 1.5" BJS, Rancho T-bars, F 5.29, R 5.29 ARB V6 FF w LC disks, 35" MT/R's

85 4Runner frame, 5" Marlin springs, 5:29 ARB HP front. Work in progress - Always!

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Re: Too much tire for IFS
« Reply #9 on: Sep 19, 2005, 05:16:54 PM »
I ran 37" MTR's for a long time, and never broke anything.  Did Prairie City a lot, lots of logging trails, lots of snow trails, and some other decently hard stuff with them, and never had a problem.
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guywithuglyyota

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Re: Too much tire for IFS
« Reply #10 on: Sep 20, 2005, 05:36:38 AM »
I run the Toyos and I am extremely impressed with them. However they are EXTREMELY heavy tires. More weight = more drivetrain strain. I also ran MTR's for a short time, and I was very impressed witht he exception of MUD, however I didnt have the ponies to spin the tires enough to clean.

I daily drive my rig everywhere, and the Toyos are very quiet for such an aggressive tread design, and my 94 SAS's truck handles like a dream on pavement.

If I ever move to a more dryer cilmate (Im in Alaska)  I will be running 37" MTR"S because they are a bargain comapred to the toyos, and they have 12.50 width instead of my super wide 13.50 toyos on 8" rims!  Can you say bead!!!

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