P/n 3802830 supercedes to 3800367 which goes to 3800756. p/n 3800761 is . 50 mm o/s p/n 3800760 is1. 00mm o/s There is also a slavage sleeve p/n 3904166 to repair a damaged hoe. it brings the bore back to std. Shadrach
Typing class was many yaers ago:-laf , and I'm a city boy ( no kidding ) Shadrach