I know I'm late but, attached you will find a picture from the parts book of a
B2710 showing the arms in question.
If your interested in obtaining your own parts book, go to http:
www.tractorsmart.com and click on "Click to Enter" then "Check it Out" then I Don't know my part number" then "Follow this link to the parts page request form". Once there, fill out the form. You'll recieve your copy of the Parts Book in .pdf format.
Once you've recieved your parts book you can look at the picture and identify all the parts your want as well as obtaining the part numbers.
You can now go back to http:
www.tractorsmart.com and order the parts you want.
And no, I don't work for nor am I associated with Tractorsmart. I just found the site to be very useful.
As for me, I've been testing various wheels in an attempt to offer a upgrade kit for the el-cheap-O anti-scalp wheels for the BX 54 and 60 inch mower decks. I've been testing various wheels and various bearing combinations. I should have something finalized withing the next 2 or 3 weeks.
DW