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**kwmech** · 05-15-2004, 01:14 AM

I have 4.56s in my 90 3/4 ton with 285/75r-16 tires and am always pulling it out of 4th to get the rpms and the power up, but cruising down the freeway on the flats it likes 75mph with 16mpg.

05-15-2004, 01:14 AM	#11
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,724	I have 4.56s in my 90 3/4 ton with 285/75r-16 tires and am always pulling it out of 4th to get the rpms and the power up, but cruising down the freeway on the flats it likes 75mph with 16mpg.