I let it sit for almost a day before putting oil back in and test driving it. I used the anaerobic sealant on the rear main and normal RTV on the corners of the oil pan. I think I followed the FSM steps right![]()
You should be okay using the correct sealant and following the steps. I've done several 4.0L rear main seals, the usual spot to goof up is either not using the correct sealant and/or pinching the oil pan gasket in the back (I've done that one myself a few times). If the pan gasket is pinched it will leak almost immediately. With all that said, it's a terrible design. Even after replacing the RMS on my '98 TJ, it was still wet around that area after 5k miles or so. Not enough to leak on the ground like before, but still wet from a small seep. I've had great luck using a high mileage oil after replacing 4.0L rear main seals to keep things dry. I've been using Valvoline MaxLife in my TJ after replacing the rear main seal 2 years ago, and it's dry under the engine now.
