Hey man, I changed pads on my Z31 this Tuesday, and did it under 2 hours. And I went into it blind. I couldnt even find my Haynes book. Thats with a regular race jack, and hand tools also. The Cougar took me about 5 hours, but it seems the general trend is that the rears are harder to work with and beer breaks. Id be willing to lend a hand if you want, and Im free.