It's an auto, for now anyway. The tranny is the worst year for the 4R70W and it is somehow still alive after 155,000 miles. When it dies a 5 speed will go in. I have the j-mod done to it, which if you have ever messed with anything with a 4R70W you've probably heard of. Its set up to shift as hard as it can with the j-mod and then back when fordchip was going they tuned it, Jerry asked me how hard I wanted it to shift, I said, as hard as possible. The 4.10's magnify the shift's shock to the tires a little too. With the Falken's that are on there now it has a pretty audible chirp on the 1-2 shift most of the time if its aboe 3000 RPM even at part throttle. It would spin the Goodyear's I had before on the shift but they were a lot quieter. Before that I had some BFG Radial T/A's on there with some other wheels, every shift was a burnout, those tires sucked for traction.
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