Bushings are sometimes included in double-eye leaf springs. Sometimes they wear out and need to be replaced.
You can purchase replacement bushings separately. You will need to know the bushing's inner diameter, outer diameter and the length of the bushings to order replacements. It does not matter which material, nylon or bronze, the bushings are. Also nylon and bronze bushings have about the same longevity. view full answer...
The Curt Class IV 2 Inch Hitch, part # 14301, will include all of the mounting hardware. I am including a link to the installation instructions of the Curt hitch.
If you will be towing with this hitch on your 2007 Chevrolet Silverado New Body you will also need to purchase the following items.
Draw-Tite Ball Mount, part # 40331
Hidden Hitch Pin And Clip, part # PC3
Curt 2 Inch Hitch Ball, part # A-90, or Tow Ready 2-5/16 Inch Hitch Ball, part # 19286
Pollak Twist-in, 7-Pole, RV-Style... view full answer...