Changing the brakes and???????

[Shinobi'sZ]

When I took off the two 14mm bolts that hold the caliper in place to the rotor, I noticed when I went to put the caliper back on that one of the bolt hole guides did not push in freely like the other one. On the other side both the upper and lower caliper bolt guides pushed into the caliper frame quite easily. Only the lower one pushed in on the passenger side. The top one was seized in place and it was a bitch getting the caliper back on with the new pads (yes the piston was fully collapsed). Just wondering if it will cause any issue with it being frozen. The caliper frame simply holds the caliper into place onto the rotor. I also notice that Toyota does not use lock tight on the bolts holding the caliper into the frame..kind of curious about that..I used some blue (medium) lock tite when putting the bolts back in.

[inov8]

I'll try to answer your question, but will have to make several assumptions
that might not be true:

-1- You are asking about the front brakes
-2- By "bolt guides", you mean the two slider pins that permit the caliper to move from side to side to compensate for pad and rotor wear.
-3- Your front brakes are identical to mine (2005 Avalon)

When I replaced my front pads, I noticed the upper and lower slide pins were not identical. The lower pin was slightly longer and had a bushing at the far end. The upper pin did not have this bushing.

I think you may have unintentionally reversed the upper and lower pins when reassembling the passenger side. You may have to purchase a new lower pin if the original one is now damaged.

Incidentally, I don't think locktite is a good idea on the caliper-to-pin bolts. The caliper assembly is subject the severe thermal shocks during braking, and locktite is likely to cause the parts to seize over time. I have not used any locktite on brake calipers during the last 50 years, and not one caliper has fallen off yet. Quite the opposite, the pin bolts were usually much harder to remove for the next pad change (needed the impact wrench).

Hope this helps.