It has just been pointed out to me by one fine lister that by swapping the original 4.11 diff on my 5kq with the 3.89 diff on the tq, I will have a problem when I use the diff lock, ie. the front wheels will be turning at a slower rate than the rear wheels. My feeble mind can grasp this, but I wonder if one of you could enlighten me just a tad. Many thanks. Geo