Just installed my GMM Ripshifter today and I thought I'd give you a quick review. First, I want to say thanks to all of the people who already posted re: the shifter. For those thinking about it, I bought it from JHP and it came in about a week. Not too bad coming from Australia. Anyway, if you can get access to a lift, you can install it in a couple hours. GMM gives you complete instructions but more importantly, they have a website with pictures of the install procedure that I found pretty helpful. (www.gmmotorsports.com). So far, I don't have any noice from it and the shifts are short and quick. Great product. Let me know if any of you potential buyers have any questions and I'll do my best to help.