Spiker Engineering Lower Ball Joint Bolt Test (1st Gen)

Website link

EDIT:
00-01(02-04 no protector) OEM "green" bolt PN 9008010066 Torque to 59ft-lbs (SINGLE USE BOLT ONLY)
00-03(04) ARP bolts (stronger but higher cost) 663-1004
00-03(04) "Black" bolt for use with protector only 9011910933 Torqued to 37ft-lbs
04-06 PN 9010512316 Torqued to 59 ft-lbs according to @shifty`. Spiker states up to 80ft-lbs is also ok.

The parenthesis around 04 is due to the fact that during that year they changed styles. You'll have to determine which style you have in order to know what bolts you need. Looks like production date may be 09/2003 but would need to confirm.

Here is the original post from Spiker Engineering about their ball joint bolt test

https://www.instagram.com/p/CgLN4b9pNRQ/


Second post
https://www.instagram.com/p/CgcwU1ePqDT/



And the most recent posts with actual data about each bolt.

https://www.instagram.com/p/ChdEav7PidW/



Here is a link to their website as well with more details and such. Didn't actually notice the website till this third post. Website link

What I gather from this is I should probably replace my "green" bolts that I've used 4 or so times with something else. First that comes to my mind is the "black" Toyota bolts but they appear to be longer. May end up with the ARP bolts



Website link

 

Thanks, this is just what I needed.

 

Do all 1gt's have the 'protector'?

 

Believe it looks like this.


I can't find a pic with one installed. I'm not sure when they started running them but I do know my 01 doesn't have one.

 

Thanks for sharing this post. This is telling me I should likely replace my flange bolts more often due to the degradation.

I think they just come on the 04-06 ball joints, a few other earlier trucks reported not having them. My truck has them. I ordered a new set when I bought new LBJs, but the new LBJs came with them installed, so now I have a spare set of protectors.

 

Thanks for posting.

They did a great job explaining their methodology and what was happening.

I’ve always thought of bolt degradation and as a result of high torque — like head bolts.

But their study clearly demonstrates that it happens at very low torque.
It makes me question the integrity of bolts that get repeated torque cycles, like brake caliper bolts, lug bolts, etc.

 

I deleted the Instagram app a while back so I'm not sure if I can see everything done in the tests. Let me know what f you eventually find a link to what could be considered better bolts.

 

My '02 has 'protectors'.

 

As good a reputation as ARP Has for head studs in the diesel world. I’d have no issues using there bolts in a lbj application.

 

So from what I've gathered is that I had the wrong torque spec when I did mine? Black Toyota bolts, not sure on markings as I don't have the truck right now. I thought the spec was 59 ft/lbs for a 2006.
Does this mean the bolts are compromised? Pretty sure I got the specs from the FSM pdf. Ugh.

 

According to a previous picture I posted on ball joints, mine have the two hash marks on them but they are not black bolts so that just makes this a little more confusing for me. I don't know why this has to be so confusing from Toyota, whether it's a misprint in one manual or what. I'd like to know if we could get it straight answer. I know every year is a little different but man this is a pain

 

I've always used the 59 ft/lb torque spec. It makes sense to me that the thicker bolts would have a higher torque spec.

 

Yea, if i'm gonna do everything, i think i want the '05-06 bigger bj's.


grodiness of '02 in tx.
Even considering sending money to CA for those solo arms.

 

Pretty sure someone said the bigger BJ's won't work on our older 1st gens. Different design.

 

https://www.youtube.com/watch?v=xPlqLHcphyw

 

I'm pretty sure all that's different is the spacing of the LBJ bolt holes on the spindle. I picked up a spare set of big ball spindles from @Hi06silver awhile back.

 

stock lca's? Ive seen than the arms and spindles are different ac/dc.

 

Oh duh, those too.

 

There is a website link in there. I had it in the middle but just added it to the beginning and end. Link

From what they stated in their studies if you used the black Toyota bolts (90119-10933) then yes technically they should have stretched if you went to 59ft/lbs.

It is right unless you're using black bolts (90119-10933)

 

So...having Toyota bolts, with the 2 hash marks not being black bolts is 59lbs from your interpretation? I have the hash marks but they ain't black bolts..zinc maybe?
Still don't know why they made this so difficult. Maybe it was the study above making me overthink. I torqued to 60-61 ish ft/lbs. Do.t.wanna be worried. I think they should fucking straighten this out if they keep having recalls on ball joints no matter the manufacturer.

 

Yeah lemme tell you I've been really confused about these bolts in the past few days. Ordered some 90080-10066 from my dealer using my VIN number, and they are most definitely too thin for the thread in my spindle.

Also ordered 90105-12316 and they worked. However they are different from the bolts I pulled out of my LBJ on my truck this week. And yes I have a double cab that I believe had the LBJs replaced.


Bolt I pulled out is on the left. The thick shank on it really inspires confidence. Grade 10.

Center bolt is 90105-12316. No shank, red hue in threads (really light application of loctite?), Grade 11.

Right side bolt is 90080-10066. Too small for the spindles on my truck.

Wish I could figure out what the part number of the shanky ones is.

 

For the 05 AC I see these two listed:
90105-12284 (08/2004 - 11/2004)
90105-12316 (01/2005 - )

04 DC lists:
90105-12284

04 sequoia lists:
90105-12284 (09/2003 - 07/2004)
90119-10933 (02/2001 - 08/2003)



Edit: 90105-12284 supercedes to 90105-A0187.

 

Pretty cool info from Spiker. Super interesting.

But wish they woulda tested the later ones the 05-06 1G Tundra got that are a bit larger. The 90105-12316.

Since they come with the red loctite stuff on them too, I'm just going to assume they will have similar life to the red ones they did test. As in, pretty much single use bolts.

 

The bolt on the left looks to be elongated...yes?

 

That's somewhat of an illusion. The shank is thicker then tapers down just before the threads start. This makes it stronger in shear around the shank.

For instance driveshaft bolts are made that way, so they're stronger where they need to be.

 

It is just longer. Literally sticks further out of the top of the spindle than the new bolts.

I'd consider also that they're grade 11 like the black bolts in that test. And that they do the same job in the same truck as all of the tested bolts but are way beefier. I'd wager that if your spindle takes the thicker bolts, the you probably don't have anything to worry about.

 

Finally just got my hands on a copy of the 05-06 FSM. FWIW, the LBJ torque spec is listed as 48 ft-lbf

Good thing I *just* torque'd my brand new LBJs into the knuckle with brand new 90105-12316 bolts less than a week ago at 59 ft-lbs as its the only number i could find (over and over and over) out there on forums. All you damn non-DC early model year folks... LOL

 

Usually is the ball joints but some people (think usually people doing serious offroading) have had the bolts break before. Recall hearing someone using seat bolts as a trail repair to get home.

 

Def a flaw in the lower ball joint design that can-- and will eventually-- cause it to catastrophically fail.

Then, IIRC, once the word was out to watch the LBJs and replace them regularly, folks started finding missing bolts and having bolt failures. Which led to finding multiple different replacement bolt part numbers and the debate on whether they could be re-used.

So, the answer to your question is kinda both...

 

See I was having the same issue. I swear I saw 59ft/lbs somewhere when I did mine.
After te-reading this study for the 10th time Ive came to the conclusion that as long as you don't have the black bolts 59 is ok.
As for you're picture, I wonder if that is for a dust cover that the bolts go through? Sorta like the other LBJs with 2 torque specs? I mean my dust cover isn't even a part of the surface where the bolts go in...idk