Helno

I gomanaged to move the slide pin using a c-clamp. It was seized. Anyway, once I got it to move out a little, I can fit the new pads perfectly. Thank you all for your advice.

I mean the head of the bolts. I think the picture does a better explanation than I do.

In regards to the lower caliper "slide", I think I can probably move it a little but it does not slide in/out completely. The 2 ends are flattend, kind of like the heards of the bolts. Just want to confirm that this is the rear caliper lower bolts. Unless the caliper setting is different on my RX for some reason.

I have tried to push the slide but it does not seem to move so I assumed that it is not supposed to move. I will try to push it again. Thank you for the advice.

Thank to all for replies. I have remove the brake reservoir cap and pushed the piston in with the c clamp but I don't think it is the piston that is causing the problem. I have attached a picture in case my description is not clear. I have trouble closing the lower caliper because either the pads are too thick or the rotor is too thick. I need to push the caliper towards the inside of the car it seems like so I don't think the piston are in the way. Please help.

I was able to push the upper bolt all the way in, at least as far as I can see. I am not using lugnuts to hold the rotor back. The problem seems to be on the outer pads. Actually, I need the caliper to be pushed out towards the center of the vehicle but the outer pads are in the way. If I fit the caliper over the outer pads, then I cannot fit the lower part of the caliper. Seems like I need to do something to push the rotor further into the vehicle to get the clearance.

I got a 99 RX300 and I tried to change the rear brake pads with the AKebono ACT325 pads. After replacing the pads, I cannot fit the caliper over the pads anymore in order to put the lower bolts through. Seems like the new pads are just a little too thick. Piston is pushed all the way so this is not the problem. Either I got the wrong Akebono thick pads or I am missing something here. Does anyone else have come across similar problem? Thanks