Ibought the rebuild kit 5 years ago and never resealed mine, i got a pump from junk yard and dissasembled to see how hard it would be to reseal, it works just like a regular mb power steering pump , but you need to drive out the dual chamber seal that seperates the power steering part of pump from the leveling part, that seal was rock hard and wouldnt come out easily, thats why i havent done mine , (slow seepage) but i figured by carefully dremel the seal i can get it to come loose, get the part no off pump i get you the part no of kit if yours is the same