I don't have that model TT, but everything I could find states it takes a 2" ball. Perhaps the previous owner could look on top of his. It should be stamped on top.
__________________ Moderator Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
If you contact Jayco with your VIN, they will tell you for sure.
I had the same question, and they advised me that it might be either, they can only tell you from the VIN
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IanP, the man from Scotland
Julie, the Lady From Little Rock