I'm about to replace the rear rotors and pads on my 1997 ES300 but my pads did not come with replacement shims. Since I hate spending money I don't absolutely have to, I was hoping to reuse the shims currently on my car. If they're completely destroyed, I will of course go out and buy new ones, but if they look good, I was hoping to reuse them after spraying them with brake squeal goop. The only reason I ask is simply because many people on other forums say, "Absolutely, go ahead and use the old ones. I always do and have never had a problem," while others say, "NEVER USE OLD SHIMS!!!" (usually just like that- all caps and three exclamation points). I'm wondering why some people are so adamant about replacing shims (and these people are in the minority- it's around 10 to 1 in favor of reusing old ones). Shims don't seem like a safety item- more just something to reduce noise.
Any opinions would be much appreciated.
Also, does anyone know how big the C-clamp should be in order to compress the pistons? I have a 3-inch C-clamp and I have a feeling it's too small. Would a 6-inch do it?
Thanks in advance.