I'm running the second option (But with SPC 81280 not the Whiteline ones) and it's held up with -2.3 for a thousand miles and a track day so far. I've been told it's not a great idea to run two eccentric bolts, though, as there's a greater likelihood of slipping. I'd probably recommend doing option 1 because you can probably get pretty much the same camber but without that risk. I'll probably be going back to that if/when it slips and I need to get another alignment.

See here:

http://www.ft86club.com/forums/showp...0&postcount=47
http://www.ft86club.com/forums/showp...2&postcount=56

That's incorrect. 81305 is for the bottom, 81280 is for the top. I am currently running it this way and the instructions say to replace the bottom bolt. See here:

http://www.spcalignment.com/instruct...05-INS_WEB.pdf

The shank of the bolt plus the tab on the washer is the same width as the cam. So if the cam is 14mm and fits in the lower hole, then it should work with the washer in place if you install them properly. I have a set of the 81260s and they go in the smaller 14mm strut holes on my car, with the tabbed washer, just fine.

With the smaller 12/14mm bolt in the larger 16mm upper hole you have a lot of free play between everything which is not great.

81260 = kca414 = 81305 = 12mm bolt with 14mm cam and they go in the lower hole
81280 = kca416 = 14mm bolt with 16mm cam and they go in the upper hole

I just installed 81305 10 minutes ago, went in the bottom hole perfectly with a decent amount of camber keeping the stock 16mm on top.


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Hmm, but is there 12 or 13mm bolt with 16mm cam? I guess such might provide more adjustment range at expense of reduced strength, but that might be acceptable compromise to some?

So, with lower camber bolt, it's better 14 mm stock bolt or another camber bolt on top?

Ok... I want to start by saying that I am sorry for being so stubborn and incorrect to:

@Horrid Funk & @jamal

81305 fits in the bottom. I read so much conflicting data... Ahhh, but there is no excuse for spreading false info.

I was wrong - my bad!



Here is my car with 81305 top and 81250 bottom. If my rear is -2.2, Im guessing i have -3 front.



https://i.imgflip.com/2bm7kp.jpgvia Imgflip Meme Generator

https://i.imgflip.com/2bm7ub.jpgvia Imgflip Meme Generator

Better pics...
18x8 +35 with 215/40 front.

https://www.ft86club.com/forums/pict...ictureid=11403

https://www.ft86club.com/forums/pict...ictureid=11404

You might want to go back and edit the incorrect posts in case someone doesn't finish reading the thread

No worries man :thumbup: Running it that way those bolts are both 2mm smaller than what I'm running, so it looks like you're getting tons of camber out of them. Idk how safe that is but that's more than I've seen anyone get from camber bolts.

Bringing this back up from the dead. I know there are a couple ways to use camber bolts:

1. 81305/81260 can be used in the bottom hole, OEM 14mm crash bolt (stock lower hole bolt) can then be moved to the upper hole.

2. 81280 in the upper, 81305/81260 in the lower hole.

I believe that ether option will work but wouldn’t option 2 be less prone to slipping? 82180 is a camber/lobed bolt meaning so it’s not solely relying on pressure (like the oem crash bolt) to keep it in place? And does anyone know the torque spec to the OEM crash bolt if i elected to use option 1?

"OEM crash bolt" is normal 14mm bolt used in 16mm bolt hole for some adjustment slack gain. Maybe such naming may confuse that it's in some way special? It's not, and i guess somewhere in service manuals it's torque value should be mention.
As for option 1 or 2 .. i'd rather go for 2, but for different reason. Camberbolts are relatively (to other camber adjustment means or alignment job cost) cheap, so not much to save of not getting another camberbolt pair, and at least for me camberbolts in both holes (I used WL's KCA416 in upper though) allowed for slightly more maxed out camber then camberbolt in lower & relocated OE bolt in upper.

Those bolts are to be torqued to 114 foot pounds.
I installed 81305 on the lower and the instructions specify lower torque around 100 if memory serves me correctly.

I have 81305 lower, crash/lower bolt up top. I ended up with -2.3° even on both sides.
For me it was convenience at the time and goals when I ordered my original bolt. I was only after small bump in camber, but later wanted more. The lower bolt sitting in the garage is an easy swap.

If you have specific camber goals, two adjustable bolts makes sense. They're cheap. You still have your stock bolts if needed.

Thanks for the reply. I ran 2 sets of bolts in my 2010 Acura before so i will likely run 2 sets for the BRZ. I don't plan to lower my car much so i am hoping to max out camber with what i can with bolts. Thanks for the replies.