I just replaced my 4.10 differential with a 4.30 so I have the complete 3rd member + an e-locker motor for sale.
The 3rd member was making a whine noise at higher speeds 60mph+. I thought it was the gears but when we opened it up, the gears seem to be in super shape. No abnormal wear or shavings. Looks like the bearing is worn so someone might be interested in doing a bit of maintenance before installing. Smooth locking and unlocking $300
The actuator motor is guaranteed working. Smooth engagement and no wear on the gear. $150.
Make an offer for both. Shipping available but the 3rd weighs about 40 lbs so consider that. Reasonable offers considered.