January 23, 2007I have a mild 355 with a TH350 trans. I was thinking about a posi 4:11 unit, but need help deciding.
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January 23, 2007What gears do you have now and what do you plan to use your truck for? 4:11 gears are great for getting off the line quick but not the greatest gears for highway use
January 23, 2007How tall are your tires? What do you use the truck for? do you tow?
January 23, 2007With the tire size of 295/50/R15 and a 4.11 rear end ratio your rpms are going to be considerably high. To cruise on the freeway at 65mph you will be turning around 3400-3700 rpm without overdrive. It would be a nice gear for drag racing and a horrible gear for a daily driven street machine. It would be alot of fun to drive, but not very practical.