Welcome! You've got the EXACT same unit as me...also a 2010 model. We just had the new slidout motor installed this past April and now the slideout works perfectly! Its actually quicker than before and the clutch engages at the right time! We are very pleased with our unit. Hope yours gets fixed up right!
2010 Jayco JayFeather 213 EXP
2016 Ford F-150, 4x4, 3.5L ECOBOOST, MaxTow, Supercrew, 6.5FT, 3.55 axle