Mine ain't, but my rear shoes are about due for replacing.
Maybe they'll squeal a bit more then.

 

I wouldn't waste time switching out for the 2500 cylinders. It really will not make any difference. You still have the same master cylinder pushing the same amount of fluid. It is the rear brakes and no matter how big of a wheel cylinder you put, your fronts are still going to do 80% + of your braking. The only situation I could see how that might make a difference is towing, but even still you would need to upgrade your shoes, drums, etc to make a difference.

In addition to the advice already given, the OP should probably consider replacing the other side wheel cylinder to be assured of even braking.

 

Add brake fluid to the Motive Power Brake Bleeder tank.

2. Firmly connect the supplied adapter to brake master cylinder and pump the Motive Power Brake Bleeder to pressurize.

3. Starting with the furthest away brake bleeder valve (typically on the rear of the vehicle), open brake bleeder valve and purge the air and old brake fluid from your brake system.

For more info visit: http://www.buybrakes.com/motive

 

Yea OK. LOL