Description: They can be Cast Iron or Aluminum. In most Trucks they were all Cast Iron. In the early Corvettes like this one they were Aluminum. Now some will argue with me. Who knows. People swap these left and right.
They can be Cast Iron or Aluminum. In most Trucks they were all Cast Iron. In the early Corvettes like this one they were Aluminum. Now some will argue with me. Who knows. People swap these left and right.
