Spidertrax install makes me nervous...
- Thread starter Lignum
- Start date
LINY4Runner
New member
Yeah I'd have to pull a wheel and look at it...but with the spacers I've driven 3 hours ar 80mph, then hardcore wheeling all weekend, and then 3 hours at 80 again without giving the spacers a second thought.
brian2sun
Elite Member
How thick are those spacers Lignum? I'm running 1" on the front and my door jam says 225s also so My studs should be the same length as yours. I can get the nuts on mine threaded on all the way with some threads sticking out past like martini's pic of the 4th gen.
Either someone replaced your studs with shorter ones, or that spacers isn't bored deep enough. I would NOT run them like that!
Either someone replaced your studs with shorter ones, or that spacers isn't bored deep enough. I would NOT run them like that!
Lignum
New member
I got the 1.5" spacers, I think I will go to the auto parts store and see if they have any longer studs. Do they have to be pressed in and out of the hub?
I'm not really super concerned becuase my wheels have been bolted on with that much thread for god knows how long and they never fell off. But still I am going to correct it.
Lignum
New member
This is from spidertrax's FAQ page:
Thread Engagement
We designed our wheel spacer and adapter kits to work with bulge style lug nuts. This is done for two reasons. First, this type of lug nut provides extra seat engagement between it and the wheel spacer or adapter. Second, this lug nut cannot be installed backwards which may sound trivial but in the long run adds an excellent factor of safety for installers.
Because these lug nuts are considered over sized when compared to OEM lug nuts, you may notice your factory axle wheel studs do not pass all the way through them when fully installing your spacer or adapter. This is usually noticable on rear axle applications where the factory studs tend to be shorter then the front. Because we model our wheel spacers and adapters around OEM wheels, the actual thread engagement on these bulge style lug nuts are designed to match the OEM thread engagement and therefore are safe.
I should have read this first, I sent them an email anyway. We will see what they say.
Thread Engagement
We designed our wheel spacer and adapter kits to work with bulge style lug nuts. This is done for two reasons. First, this type of lug nut provides extra seat engagement between it and the wheel spacer or adapter. Second, this lug nut cannot be installed backwards which may sound trivial but in the long run adds an excellent factor of safety for installers.
Because these lug nuts are considered over sized when compared to OEM lug nuts, you may notice your factory axle wheel studs do not pass all the way through them when fully installing your spacer or adapter. This is usually noticable on rear axle applications where the factory studs tend to be shorter then the front. Because we model our wheel spacers and adapters around OEM wheels, the actual thread engagement on these bulge style lug nuts are designed to match the OEM thread engagement and therefore are safe.
I should have read this first, I sent them an email anyway. We will see what they say.
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brian2sun
Elite Member
I got them from We manufacture the best Wheel Spacers money can buy | Motorsport Technology
They're a local shop who actually were the first company to make custom aluminum spacers for any car. They are very high quality and mine fit perfectly.
theizzardking
New member
long long thread for a simple question, your fine, they way the math works on this one is the number of threads you need to attain here is "7" anything over that is over-kill, once you reach 7 threads due to the math your pretty much looking at an infinitely long thread after that. if you don;t quite got that you may need longer studs but i can't really see that being an issue.
i'll see if i can find a link to show you what i'm talking about
i'll see if i can find a link to show you what i'm talking about
Duhockey
Senior Member
LOL 6 hrs at 80mph with 3.88 gearing and 10mpg equals how much in gas money?!?! LOL
the spacers themselves shouldnt be a problem, but 7 threads is enough?? I know that some things may be safe, but I wouldnt perceive that as safe even if thats true...
Lignum
New member
I think I have about 8 threads.
theizzardking
New member
yeah to be completely honest the first 3 threads take about 98% of the loads and after that you don't have to be worried about sheer to much, i just said 7 becuase it looked like that's about what you had and the math says at about 7 full threads of engagement you're approaching the strength values of an infinite rod, meaning the bolt could be infinitely long and you won't get anymore strength from it.
FoneRunner
New member
I don't know anything about thread science or load coefficients, but thats what my spacers looked like on my truck and I put a ton of 80mph miles on them. The only issue I had was some vibration at 70 or so....the reason I got rid of them was because I didn't need them anymore. One thing that made me a little nervous about them was the little paper that comes in the box with them that says "FOR OFFROAD USE ONLY"...oh, and I never had them retightened. I put them on and took them off a couple of times when I was doing my brakes...never retightened them. I did use loc-tite every time though....
So, there's my experience with them. Bulldogtaxi has them now...he has a 4th gen but I don't know if that makes a difference.
So, there's my experience with them. Bulldogtaxi has them now...he has a 4th gen but I don't know if that makes a difference.
Lignum
New member
That is reassuring, glad I don't just have freakishly short studs or anything...
Lignum
New member
You installed the allpro lugs on spidertrax spacers or allpro spacers?
theizzardking
New member
it's as safe as perceiving gravity as true.....i mean the only time you really can't rely on that is if there's a difference in materials like if the stud is steel and the nut/hole is aluminum. but all things being equal the general rule of thumb is 3 threads for bare minimum engagement, 5 is nice and 7 is infinite.
but seriously in this instance your fine and don't have anything to worry about, it's annoying me trying to explain all of this in greater detail, your just gonna have to trust me and physics that 8 threads is fine.
or you can do the math and see what i'm talking about.
Schraubenberechnung unter Berücksichtigung der Flankenwinkel, Werkstoffkennwerte und Scherspannungsverfahren.
Lignum
New member
They sell new studs at the autoparts store but i don't feel like paying someone to press them in and out. I will probably buy the allpro lugnuts, but I am still waiting to see what spidertrax says...
LINY4Runner
New member
you don't need a press...bang them out with a hammer, and use an upside down lug nut to pull and seat them into the hub
