So, Whiteline is claiming that the upper hole is safer because it takes less load than the lower hole. You state that the lower hole is safer because it is less likely to slip. I would think that the bolt taking less load would be less likely to slip, so my question is: Why would putting and aftermarket camber bolt in place of the stock one in the upper position would make it more likely to slip?Re: Fitting Front Camber Adjusters.
Secondly, "undersize" camber bolts are perfectly safe and recommended for road use if replacing the upper clevis bolts which takes the minor share of the load. (Lower bolt takes the majority). There are 3 large companies using this method, one of which is Monroe which has their product manufactured in Germany and is sold with TUEV approval. Whiteline bolts are between 1 – 3mm undersize depending on absolute size – that is, a 12mm bolt has a smaller difference than a 17mm bolt, etc.
Jim Gurieff, Whiteline
You are correct. The upper OEM camber bolt has a honkin huge lobe. That means the hole in the clevis is honkin huge as well.so, the actual lobe on aftermarket camber bolts is smaller than the OEM bolt's lobe, but it happens to be the same size as the lower bolt's diameter? If that is indeed the case, I can see why the upper hole would make it easier for the bolt to slip
Welcome to camber bolts. Almost all the data from the manufacturers is this bad. I have a feeling what happened is that the "default" recommendation for all aftermarket camber bolts is to be put in the upper hole. Then, someone in engineering measured the Subaru knuckle, realized that the only logical place to put the bolt was in the lower hole (because why would you replace a camber bolt with a camber bolt?) and spec'd the correct size bolt for the lower hole (as well as both holes in the rear). However, somewhere along the line, the left and right hand didn't talk to each other and no one realized that the size recommendation plus the location recommendation were at odds with each other.but then it surprises me that the bolts would be designed that way by multiple companies with the intent of putting them in the upper hole.
As I said up top, the reason I wrote this FAQ is that all the instructions are wrong.I was just reading the online installation instructions from Ingalls (the bolts I bought from you guys at TiC)
I have a question then.
Would it be possible to put OEM camber bolts on the top and bottom holes instead of using the aftermarket ones?
Recently when I put on new springs, I put a bolt through the bottom hole just to hold the strut in place while I positioned it into the strut tower. I believe the bolt I grabbed was the camber bolt. I did install them properly in the end but I just grabbed a bolt next to me and stuffed it in the hole for the time being.
I could be wrong as my mind was obviously somewhere else. But if so I would be tempted to just use 4 OEM subaru camber bolts instead of using any aftermarket ones. Stronger and less likely to slip.