Used mono balls (or Heim joints.) These are Com12T mono balls (aka spherical bearings.) They are 3/4 inch ID. These are typically used in suspensions applications. These mono balls sell for $18+ each when new. These were removed from new and used lower control arms and truck arms from Top NASCAR race teams. These are the best you can buy. Buy them here and save a ton of money. Most of these mono balls are still as good as new and have a lot of life left in them. These are the Com12T version with Teflon. Sold Individually.

Here are the dimensional specs:

Ball Bore: .750"

OD: 1.4375"

Race Width: .593"

At a fraction of the price of new ones, you are sure to get a heck of a deal here. These are great for many ASA. ARCA, Sprint Cars, and even some dirt track cars. Mono ball Heims like this are popular in upper and lower control arms as well as other suspensions parts found on many Ford, Chevy and Dodge race cars. According to the Coleman website, these replace K-6145 style Ball Joints and fit 73-88 Monte Carlo, El Camino, Chevelle, Malibu, 70-90 Camaro, 73-88 Cutlass, 75-79 Omega, 77-86 Bonneville, Catalina, Grandville and others.