Do not be afraid to change the diff fluid, it is very easy. However, you do need a lift or at least jack the car up to work safely under it.
There are two allen head plugs on the diff. One drain and one fill. Remove fill first to ensure it comes off before you drain the diff.
These plugs will be either 12mm or 14mm. Mine was 14mm. I used a socked style allen from a three pack sold at Autozone. It had 12 and 14 included. You will need to take a drift pin and hammer to pop the allen out of the socket to get the drain off (clearence from exhaust) and use a box wrench on the allen to turn it.
Once both plugs are out and fluid is drained, refill with about 1.5 bottles of fluid (brand of your choice).
This is literally a 10 min job and prob easier than an oil change.
There are two allen head plugs on the diff. One drain and one fill. Remove fill first to ensure it comes off before you drain the diff.
These plugs will be either 12mm or 14mm. Mine was 14mm. I used a socked style allen from a three pack sold at Autozone. It had 12 and 14 included. You will need to take a drift pin and hammer to pop the allen out of the socket to get the drain off (clearence from exhaust) and use a box wrench on the allen to turn it.
Once both plugs are out and fluid is drained, refill with about 1.5 bottles of fluid (brand of your choice).
This is literally a 10 min job and prob easier than an oil change.