11-03-2020, 09:11 AM
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#31
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may we know the brand and where you bought the bolts? did you install the LBJ dust covers?
Thanks
Quote:
Originally Posted by theesotericone
The Toyota bolts are 8.8 at best. As someone who's broken 7 of them I will tell you they are crap if you are pushing your rig. About 9 months ago I went to 10.9 M10-1.25x30mm hex head flange bolts. In that 9 months I haven't broken a single one. They are torqued to 60 ft/lbs and red loctited. My wheeling hasn't changed so it's a direct apples to apples comparison.
The Toyo bolts are fine for what the engineers have them designed for. Once you step up to 35's and big rocks they aren't even close to strong enough.
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11-03-2020, 11:03 AM
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#32
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Quote:
Originally Posted by HiluxSurf SSR-G
may we know the brand and where you bought the bolts? did you install the LBJ dust covers?
Thanks
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McMaster-Carr
What LBJ dust cover? I've installed a lot of LBJ's and have never seen a dust cover.
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. --Albert Einstein
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11-03-2020, 01:09 PM
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#33
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like this
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11-04-2020, 05:54 PM
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#34
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Quote:
Originally Posted by nissanh
If you look at the lower ball joint mount to the spindle on newer models, there are just 2 bolts! I prefer 4 bolts like we have in the 3rd gen.
It the bolt is tight the shock absorber/coil spring will do the damping.
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The new design doesn't put the lower ball joints (or bolts holding the ball joint) in tension. The two bolts are up-sized too, I believe.
-Charlie
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11-04-2020, 07:36 PM
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#35
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Quote:
Originally Posted by phattyduck
The two bolts are up-sized too, I believe.
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Yes, quite a bit bigger than the 4 used on our 4runners.
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11-05-2020, 08:05 PM
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#36
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Is it best to stay with the older style, or buy aftermarket ones? What type should I get? Zinc or...? I feel safer with Japanese steel if possible...
I believe someone said: 10.9 M10-1.25x30mm hex head flange bolt
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07-15-2022, 01:02 PM
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#37
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official vendor
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We're running tests to gather quantitative data on these bolts (and others), to compare their strengths and appropriate torque levels. The results should answer all the questions and speculations raised in this thread - Everything you always wanted to know about LBJ bolts.
Last edited by Spiker Engineering; 07-15-2022 at 09:41 PM.
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07-15-2022, 09:12 PM
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#38
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I made the mistake of over torquing the LBJ bolts in my 2002 to 59 ft-lbs and after posting to the forum, folks suggested buying new bolts and torquing them to the correct 37 ft-lbf. I went this route since the bolts are designed to be "on-and-done", basically they were over stretched at 59 ft-lbs. Here is my original post.
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Daily: 2000 SR5 3rd gen 4runner - 4wd - Tundra 5100, OME springs (3in lift), 32 in Falken Wildpeak AT3W (275/70/r16) - 245K miles
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07-15-2022, 09:47 PM
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#39
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I wonder if the lower torque for the 2001 2002 is so the bolts dont tear the dust covers. I briefly had a 2001, replaced the LBJ's with the old style higher torque bolts. Someone had done this car b4 as neither one had the dust covers but had the newer style bolts.
will be interesting to see what spiker tests show
Everything you always wanted to know about LBJ bolts
and of course I have read threads saying dont reuse the bolts....and threads where people do reuse with no issue...so lots of questions on that....reuse or new....I go new and only use yota LBj's and bolts
the lbj is one thing about 3rd gens that make me nervous....poor design by yota
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Last edited by 3bears; 07-15-2022 at 09:54 PM.
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07-16-2022, 10:41 AM
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#40
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official vendor
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I think the bolts are actually nowhere near failure even at 59 ft-lbs, I think that is one of the common myths that I plan to bust (or to confirm, I am open to new data).
BTW, I see that you applied loctite to the bolts during installation. While a good idea, loctite lubricates the threads and may cause a higher installation preload than you would get with dry threads - so that may contribute to damaging or breaking the bolts. That will be part of our testing as well.
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