So after 23k on the slip yoke eliminator kit I checked my t-case fluid and its black. Or very dark....I checked it about 3k after the slip yoke install and it was still red. I am running Swepco 714 trans fluid, 1987 NP231. Just wondering if this was normal with new bearings etc. I changed it of course. The Jeep sees extreme conditions only (towing, expo and 4wd) that's all i really use it for, no DD. Obviously has the V8 pumping its torque through it but thought it to be a bit odd to cause that much wear after so few miles. 23k is not much in my book to cause the fluid to go dark. Thoughts?