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My original plan was to change the front brake pads. I figured it would be a good idea to flush the brake fluid before removing the calipers, taking them apart and cleaning them and reinstalling them. I started in the back and right out of the gates I hit a road block. The bleeder valve on the rear cylinder was rusted tight and it sheared off when I tried force it. Guess what? The other side was the same way. I replaced them both and in the process I sprung a leak in the middle of a brake line. I replaced the brake line and FINALLY got moving with things. I flushed the system fairly well and found a lot of sludge inside both calipers. They did clean up nice and there was no noticeable scars or damage to anything. The seal kit that I bought was the wrong kit. My calipers don't have the two separate pistons, it is just one large piston. It was late and I wasn't about to make a fourth parts run. The seals did look good and I cleaned them up the best I could. I would have much preferred to replace them. I put everything together and it drove 100% better. The shimmy was gone and I was home free. A couple of days ago the shimmy started to come back, slowly, as I applied brakes. Today, after I flushed the power steering I took it for a spin around the block and the shimmy was getting me worried and pissed off. I can feel the steering wheel shake and there is a pulsing feel--only when I am pushing on the brakes. I parked in my drive way and I could smell brake. I stuck my head in the wheel well and the driver’s side was hot, the passenger’s side smelled/felt fine. I would bet the farm that the caliper is sticking because after I put it back together last week the braking was smooth. There isn't too much to a caliper and I don't want to buy a new one, however, could this be caused due to bad seals? It is easy enough to remove and take apart but would I be better off just replacing the entire caliper? Oh yeah, exhaust. As I was under my truck farting around with brake lines last week I noticed that my tail pipe, right where it comes out of the muffler had completely rusted through and that last section is dangling on the hangers. I was hoping that there would be enough metal to clamp or weld to rejoin the two sections, but there isn't. I am sure I could replace the muffler and piece in a coupler for a fix, or would it be better and more cost effective to just install a new exhaust from the turbo to the back bumper. Any product I should consider?