Modifications

My factory stock exhaust system developed a leak where the passenger side tailpipe meets the muffler and the mufflers were getting pretty rusted. I checked into factory replacement, but everything was discontinued. I wanted something quiet like the factory system. I talked with another owner that had this system and he was very pleased with it. I installed it and yes it is a very well built system.

Flowmaster Force - III System, #17218

With 123,000 miles on it, I thought it was time to replace the factory hoses. I chose the Hi-Miler set made by Goodyear.

Goodyear Hi-Miler Hoses, #5007

I prefer a nice controlled ride, but not firm. I wanted the Bilstein:
B46-1516-HO (FRONT)
B46-1517-HO (REAR)
These are great shocks with good ride characteristics, but somewhat pricey. I decided to go a cheaper route and chose the Monroe Matic-Plus shocks that are valved specifically for the Impala SS. I am very pleased with the ride, handling and price:

Monroe-Matic Plus
Impala SS
33123 (Front)
33135 (Rear)

I odered from my local Chevrolet Dealer the Buick Roadmaster Rear Frame support brace. This brace did not come on the Caprice or Impala SS from the factory. The brace bolts across the back where the left and right rear bumper absorbers attach to the frame. This adds stiffness to the frame and eliminates some body wallowing.

Buick Frame Brace, GM #10225142

I odered from my local Chevrolet Dealer the body bushings needed to perform what has been termed the "Mueller Mod". This was researched by Scott Mueller a fellow B-Body owner. I waited a long time before performing this modification, because I thought it wouldn't really be that noticable. I was very wrong. This made the car feel very tight and removed almost all of the body wallowing. It also got rid of the body creek when making a slow full lock turn. Highly recommended.

Body Bushing, GM #457915 (QTY: 10)
Body Bushing, GM #457917 (QTY: 2)

My Caprice came from the factory with the trailering package (V92) which came with a heavy duty mechanical fan clutch. This fan setup causes quite a roar when taking off from a dead stop and somewhat annoying. I know most people remove the mechanical fan and switch to the dual electric fan setup that the Impala SS came with, however most of the parts for the Impala SS dual electric fan setup are discontinued. I chose to install the lighter duty silicone filled mechanical fan clutch. I learned of this part through fellow Caprice SS owner. This totally eliminated the fan roar and did not affect cooling at all.