Finally I just pull the trigger for the extremely rare Ring and Pinion 17/61 3.58 from Fiat Strada available at MWB. I allready have a 5 speeds trany spare in my basement. That will be my Christmas gift for my winter project. I wish that will be a fair combo with 1500 engine with MWB performance head, D223 Cam and lightened flywheel, already operational for more then 3 years. My objective is to have my X to be highway pleasure trip and less noisy at 75mph. If i'm not satisfy after the next summer season I will put back my original trany. I hope I will not regret it!