We did this on an 863 G series last summer and somehow the auxillary hydraulics don't run right now. When we put our soil preparator on now only one direction spins with any good speed and power. The other direction spinns but like half the speed and 1/4 power. We did all the work...10 hrs, bobcat came and plugged their computer in for 5 mins to tell the computer about the new rear stabilizer hydraulics. $320. ouch. anyways the flow isnt quite right, any ideas?