Spacers too big for studs

Hey everyone,

I recently installed a set of 6061-T6 6x139.7-6x139.7 spacers (M12x1.5 thread pitch, 1.25 thickness, 106mm center bore) on my Toyota Tacoma, and I noticed some visible threads after the spacers are on, meaning the lug nuts aren’t fully engaging with the wheel studs. I’m concerned the wheel isn’t fully threaded, and I wanted to get some advice on whether this is normal or if I might have the wrong model spacer for my truck.

Here are the details of my setup:

Spacers: 6061-T6 6x139.7-6x139.7 M12x1.5-106-1.25”

Vehicle: 2013 Toyota Tacoma SR5 (6-lug, stock studs)


I’m wondering if:

1.The spacer thickness might be causing the issue (too thick, not enough thread engagement).

2.The center bore size is incompatible (106mm) with my Tacoma’s hub.

3. Studs are too short

Any suggestions on how to fix it? Should I be looking into longer studs, thinner spacers, or a different spacer brand?

I have 33 inch wheels so the spacers are necessary to avoid friction.

Appreciate any help!

Thanks in advance!

 

That's how all 4 corners of my truck are. Ive jumped my truck way too much and never even checked them. Just use loctite

 

Have you tried extended thread lug nuts yet?

 

I'd be worried about the treads stripping when you reach torque spec. Recommended torque spec is given when you have full thread engagement and you don't have it.

 

Since you asked for opinions, I'll offer mine. A couple of thoughts here:

- The spacers are definitely too thick for your wheel studs. The pics show that your studs are about 3 threads too short. Good practice is to have at least 2-3 threads showing past the lug nut. I would not be comfortable running spacers like that.

- You didn't mention the brand pf spacers you used. Off brand spacers have all sorts of problems.

- You mentioned that the center bore size was incompatible with your center hubs. That's yet another sign of a poorly designed spacer. They should be a snug fit for concentricity.

I'd recommend a different brand of spacers. I run Spydertrax spacers and have had zero issues. They also fit perfectly.

 

Those are the lug nuts installed !

 

if you installed those, how much thread would you say is through the lug nut 3/4"+???
still looks sketchy as fuck!!!!
did you actually torque them?
send a pic, email, description, vehicle info to spacer manufacturer.....
see what they say....

 

Those lugs are meant for the OEM studs, not the studs on the spacer.

 

looking at the pics, thats alot of thread thats being used vs 1/8"-1/4" thats not...
Ide still send email, see what they say...
If its a quality brand spacer, they've seen every scenario....
vs rolling the dice & possible bad outcome

 

thats what he said he did, pay attention...
but yes thats not what you see in just the spacer pic off the truck..

 

yep the extended lug nuts are installed on the oem studs

 

Will do thanks

 

I worked in injection molding and tooling for a lot of years. Due to the fatigue nature of that process, the general rule of thumb for thread engagement (because you didn't always have the luxury of a lot of steel), was 1.5 X diameter (of the bolt or stud).
Do with that what you will.

 

Why I mentioned it.

 

I've read the same (1.5× bolt/stud diameter for thread engagement). I think you're OK here only because you have the extended nuts, but as said, these concerns normally don't come up on good quality spacers (Bora or Spidertrax).

 

Wrong. Supplied nuts go on the spacer, stock nuts on the wheel.

edit: I think I may be arguing with you...carry on...

 

I think if you look carefully, you'll find that you're both saying the same thing.

 

OP, provided the spacers are tight to the brake rotor, and the nuts are threaded all of the way through, you should be OK. The studs not going through the nuts is concerning, but with fully threaded nuts, you have enough threads for a solid mount.

 

FWIW here's a pic of the Spidertrax 1.25" on my 3rd gen.



I side with the, "you'll be fine's", though, longer lugs wouldn't hurt.
Some applications the lugs are too long and need to be cut back.