Update by user Mar 12, 2021 It appears I will be spending about $1,000 dollars for a new unit. Original review posted by user Mar 12, 2021 I noticed a leak on the brake shaft on the right hydrostatic drive unit and contacted Hydro Gear for advice and was told there was an external oil retention repair kit available. I contacted the bad boy dealer who said they knew nothing about a kit and never got back to me. After another call to HG I got the kit number and finally got the kit for $70. Hydro-Gear knew they had a problem with these units and should have given these kits to customers who requested them and pay for the installation. The unit in question only had 256 hours on it and was properly maintained. The customer service is very poor in this regard. I'm very disappointed with Hydro Gear .