I was going to buy some reduction gears from Low Range Off Road for my Sierra as I can't find an already built case locally to put in, problem is I have no idea how to put the new gears into my case, can anyone reccomend a workshop in Sydney (closer to Penrith area the better) to put them in? I'm not sure what kind of shop would specialise in a job like this and I'd like to take it to someone who has done it before. Thanks
