Don't try to force them straight into the hole. You will break tabs. You have to start at one end and move them around. You will slightly shift it at one end and bring it back to its final position.
Get Ultimate Towing Stability With CURT TruTrack Weight Distribution Hitch & Sway Control - Up To 10K Capacity, 2-Inch Shank & 2-5/16-Inch Ball - In Sleek Black Design
30 Review
Nokian Tires Hakka Green 3 205/55 R16 94H summer
37 Review
Yokohama Ice Guard IG50 215/50 R17 99Q winter
36 Review
Nokian Tires Nordman RS2 SUV 225/60 R18 104R winter
32 Review