Hello, I have gotten back into Z's after a 25 year absence. Back then there was nothing like this forum so I am very thankful for this as well as the other forums and I look forward to your input. I am refreshing an early 260Z. She is up on jackstands now and probably will be for another year or so. I paid $250.00 for the car and have decided to take her down all the way. I do not have much history as the PO died 2 years ago and the car sat. I will be putting a 5 spd in and after going through the posts it seems that a 3.9 R200 would be the best choice for gearing. This will not be a daily driver but my speed days are over. So to my question, if you had the choice, would you go for the 3.7 LSD or go for the 3.9. Thanks, Skip