I finally got around to base lining the gear oil in the diffs and t-case on my '97 factory locked TLC this weekend. I bought it back just before Thanksgiving. Front diff oil was gray soup and the rear was full of what I am pretty sure is ATF. I drove the truck just before I drained the diffs so the oil would be warm and drain better. I let the rear drip for a good half hour before I refilled with dino 75w90.
Do I need to be worried at all about damage to the rear diff due to the wrong lube? Is there any reason it would have been filled with ATF? Do I need to change the diff oil again soon to try and get rid of any remaining ATF that was still in the diff?
It may be all in my head but it seemed like I needed less gas pedal to get up to speed on my way to work this morning.
Do I need to be worried at all about damage to the rear diff due to the wrong lube? Is there any reason it would have been filled with ATF? Do I need to change the diff oil again soon to try and get rid of any remaining ATF that was still in the diff?
It may be all in my head but it seemed like I needed less gas pedal to get up to speed on my way to work this morning.