I got under the car and my TJ is leaking between the crankshaft seal (behind harmonic balancer) and the upper alloy sump. I think if I drop the upper sump, I can reseal the leak.

If it was leaking between the rear main seal and crankshaft, I'd need to replace the main seal.

Can I remove the upper sump easily? I did remove the lower sump when I first got the car and that was easy.