We start with a Sport LDU in excellent condition and perform a light rebuild: pressure wash & cosmetic refresh, new axle seals, fresh ATF, and a coolant bypass to eliminate the rotor-seal failure mode. We then validate on our bench in forward and reverse for smooth, quiet operation.
| Base unit | Tesla Sport LDU (P/N 1025598), inspected and lightly rebuilt |
| Included work | Pressure wash, axle seals, fresh ATF, coolant bypass mod, harness and resolver check |
| Controller options | OpenInverter • AEMEV VCU 275/300 • EV Controls T-2C • OEM Tesla (vehicle use) |
| Validation | Bench spin in forward & reverse, parameter set/verify, isolation & noise check |
| Upgrades | LSD options • Gear-set swaps • PFI FERSA hybrid-ceramic bearings • Full rebuild |
| Lead time / pricing | Contact for current inventory, controller choice, and upgrade pricing |
| Differentials | Multiple LSD choices for traction/performance; ratio selections available |
| Bearings | PFI FERSA hybrid-ceramic or high-spec steel bearings; preload/runout set to spec |
| Full rebuild | All bearings & seals, rotor polish, stator buff, oil pickup & screen cleaning |
| Tesla Drive Unit Services | Bench diagnostics, on-car validation, firmware/log review, isolation fault tracing |
| OpenInverter / AEMEV / EV Controls | Controller setup, calibration, harnessing, and drive parameter configuration |
| Coolant Bypass Mods (LDUs) | Delete-plate installs to eliminate rotor-seal failure mode |
| HV Insulation & IGBT Testing | Hi-pot, insulation resistance, and power-stage device validation under load |
Built and validated in our Phoenix facility. Pallet shipping available.
Scheduling & Ship-To
Gruber Motor Company
203 W. Lone Cactus Dr.
Phoenix, AZ 85027 USA
Service Desk: 623-433-8500
Maintenance Tip:
If you hear whine/vibration or see isolation errors, address immediately.
