i think i saw your post at the top of this page, the information the guy gave you is accurate. i will add that if you do pull the rear housing off too far and the brushes do slip off the slip rings, there is a recovery. you will find a small hole in the rear cover near the brushholders. you will need a paperclip or small straight wire. carefully push the spring and brushs back into the brush holders (takes patience!). push the brushed down into the holders and insert the paperclip through the hole from the outside of the rear cover. the clip will hold the brushes down and clear of the sliprings while you reinstall the cover in any of the four positions you want. then pull the clip out, releasing the brushed to come back into contact with the slip rings. just did this with two s10's last week for two of my old tractors.