Waiting for a reply on a PM, but wanted to ask the forum anyway. If I do the Diff-Lok hack will that disable the "rev-limiter" ? Is the "rev limiter" the TRAC/ATRAC ? Just not real sure & wanted a little input. The reason I want to do the hack is I want to use the Locker in 2W HI. No matter what is possable with the hack,(engauging at any speed), I would only engauge Locker at a dead stop. I just feel that flipping that switch at any speed can't be a good thing. Just my 2cen. BTW guess I'm just old school but I still back up 10 to 12 feet when I go from 4 WD to 2 WD. I know I don't need to but just the way I am. Thanks for reply's....