Thanks to Chris Miller I have the '91 200 gear ratio's and weight. Turns out I have the 4kq numbers in my file. Anyone have the ratios for the '84 4k and '87.5 coupe? Weight for the coupe? 2500lbs? TIA, Wolff Weight Gear LBS 1st 2nd 3rd 4th 5th final '91 200 tq 3627 3.60 2.13 1.36 .97 .73 4.11 '87.5 coupe '86 4kq 2720 3.60 2.13 1.46 1.07 .083 4.11 '84 4k 2320