has anybody conclusive information as to why the front bottom caliper pin has a rubber end attached to it...even after re-greasing them, all is moving freely and smoothly, but shortly after, these particular pins get seized up again in a few days of brakeing...the other pins are OK...why is it the aftermarket sells the subaru slider pins without the "rubber" ends

I thought in http://ultimatesubaru.org/forum/showthread.php?t=99382&highlight=caliper we pretty much figured out that it kept the caliper from wandering?

 

Dave

has anybody conclusive information as to why the front bottom caliper pin has a rubber end attached to it...even after re-greasing them, all is moving freely and smoothly, but shortly after, these particular pins get seized up again in a few days of brakeing...

Could you define ''seized up'', and how you're making that determination? Also, what specific lubricant are you using?

Could you define ''seized up'', and how you're making that determination? Also, what specific lubricant are you using?

...Silicone Brake lub from Napa..defining "seized up" would mean that the caliper pin can not freely move " in and out" without the use of plyers

That's normal for the "lock pin" to do that. It requires constant steady pressure to remove. The rubber used on these pins is a bit soft as compared to others I've seen, which makes them more difficult to remove.

 

These calipers are Akebono designs, and they're excellent. I see them increasingly used on non-Japanese brands to remedy known issues with their previous designs.