Father-in-law rode with me today to see what he thought it was. He said it sounds like its coming from the transfer case. I guess next step is to change the fluid. When I changed the speed gear I could tell there was fluid in the case.
Listed below is all the mods that are in the Jeep. I'm glad they were able to list everything that's been done.
Currie “Rock Jock” Dana 60 high Pinion rear axle with 4:88 gears
and Eaton Electronic Locker
Front Yukon Chromoly shafts and 4:88 Gears
Tom Woods rear drive shaft and slip yoke eliminator
New front drive shaft as of recent months
Rubicon Express 3.5” short arm kit
All adjustable upper and lower control arms, Front and Rear
adjustable track bars
1” Prothane body lift (for high clearance gas gas-tank skid plate
Currie/Savvy solid chromoly steering Currectlync set up
Fox 2.0 Reservoir shocks, All
Fox 2.0 Steering Stabilizer
Currie Aluminum antirock Front
Poison Spyder Front and Rear Bumpers
XRC 8000lb water proof winch with synthetic line
XRC Front and Rear Fenders/ Rock Sliders
All aluminum three row radiator
New alternator
New water pump, thermostat and housing
New bolt, spark plugs
K and N intake
Die Hard platinum battery
New rear main seal
New luck stock style clutch
Banks exhaust