Thread: Posi Rear Ends
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Old 06-14-2009, 06:17 PM
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Join Date: May 2009
Location: American Fork, Ut
Cobra Make, Engine: 66 Cobra
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We'll in the end I went with the 3.50s and the Truetrac for my nine inch. I have used the Truetrac before with good results. I really went back and forth between the 3.50s and 3.70s. I think the thing that swayed me to the 3.50s was a survey I read with owners that had 302s. The vast majority had 3.54s in their 8.8s. Additionally some who had 3.73s with the T-5 complained that you might as well start out in second gear. In the end it's all a trade off between the high and low speed driving. I also called FFR and they recommend the 3.54s for their customers with stock or slightly modified engines. They are selling the 3.73s in their complete kit only because of availablity of the 3.54s for the new axles.
Anyway if I don't like the 3.50s I will change them out. Setting them up is what's fun for me.
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