Upgrading the hydraulic pump on a Harbor Freight towable backhoe trencher

How to upgrade the hydraulic pump on a Harbor Freight towable backhoe trencher. Went from stock 2.7cc pump to a 4.1cc Salami pump. ====== Pump: Salami Hydraulic Gear Pump ====== Model #: 1.6PB4.1D-R080S0 Alternative model #: 1.5PE4.1D-R80S0 (The 1.6 was superseded by 1.5. Both have identical mounts and port locations, but there are some cosmetic differences.) Purchased from: https://hydraulic-supply.com/1-5pe-se... ====== Outlet hose adapter: 6MB-6FP ====== Purchased from: https://biedlers-hydraulics.com/gates... Inlet hose adapter: 8MB-8FP Purchased from: https://biedlers-hydraulics.com/gates... Checkout my backhoe playlist for more videos on modifying and using this machine:    • Harbor Freight Backhoe Trencher