I'm rebuilding an 89 V6 Raider auto into a 4D56T with manual trans and lockers. I put an ARB locker in the front and swapped a gen II SR disc brake axle into the rear. I am using an ARB compressor with a pressure reducing regulator that drops the rear locker pressure to 15 PSI. The compressor cycles every 10 seconds or so with the factory diff locked, and I can feel air coming out the vent tube. Do these always leak a little like this? Has anyone replaced the seals? Should I use a high volume low pressure pump instead, and just live with the leak?

Sorry if this question has already been answered. I searched a bunch but didn't find it. I just joined. Thanks!