Library › Tools & garage › CURT 40089 trailer ball

Shank Ø50.8 × 82.55 mm (collar, rise and thread not published, not modelled)

Shank Ø50.8 × 82.55 mm (collar, rise and thread not published, not modelled)

Exact dimensions. True size, no printing tolerance added.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

From the full sheet

CURT 40089 trailer ball (3 in ball, 2 × 3-1/4 in shank, 30,000 lb): every size, notes, mating features and sources. What are the dimensions of the CURT 40089 trailer ball?

Other sizes