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If yours cuts out at 100mph I'd assume you have the 4x4 or a 4x2 without the tire/handling package. The only way you can exceed the limit is have the engine controller re programmed( the only one I'm aware of with this capability is the dealer) or replace the engine controller with...
iowabigguy Member Posts: 552 February 2001 I have the 4.7l 5 speed 3.55 and tire/handling. I am turning just a touch over 2000rpm at 60mph. I'm starting to maybe doubt if I have the 3.55 even though it is labled 3.55 if we are both getting the same rpms at 60mph. Can anyo...