I'm biting the bullet and just buying a new one. Rebuild didn't work and a used part I tried to use to save money didn't work either. Have literally sent it back twice now. It will work fine 90% of the time then out of no where to the floor it goes and have to pump it to get brakes. Anyway the lowest I've found a new unit for is $2,189. Are there any dealer that have a discount for being a member? Thanks in advance.