Take your time and follow previous advice.. I just did mine a month ago. I purchased mine from a estate. The person had died and it was tied up in a legal battle and set outside for a long time. Water got into the bell housing and froze up the the TO bearing and it ground the buttons off the P. plate. The whole assy. was rusted. New Holland wanted $1,110 for the parts. I took the clutch disc to a shop and had it relined. Wire burshed the whole assmbly and cleaned it. N. H. wanted $30. each for the buttons (3). I went to the auto parts store bought three metric bolts, ground the head oval and installed them, then set the clerances in the pressure plate as stated in the manuel. I did disconnet my front loader. It gave me alot more working room. Follow previous advice. Have three of four blocks to place under front to prevent it from tilting when splitting, have a couple of jack stands, available, I also had a bottle jack, which gave me percise alignment when going back together. I also had a transmission jack which is more stable than a floor jace. Have a couple of guide bolts made up as advised. When I staretd together, I small come along and held it together, to hold it in place as I gently worked it guided it in, and used a couple of longer bolts until the bell housing was close enough to get ght right bolts started. Take your time. Time frame to do the job is about as stated. New Holland wanted over $2000. for parts and labor. Good luck. John