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67ChevyRedneck · 11-03-2005, 04:15 PM

Those are some low rpm's for 60mph. My truck has a 350/700R4/3.73 and it turns about 2K @ 60mph and about 2500 rpm @ 80 mph. I can't remember my tire size, but 255/70/R15 sounds familiar, but your tires are a good bit taller than mine...... odd.....

11-03-2005, 04:15 PM	#8
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: My motor RPMs don't seem right Those are some low rpm's for 60mph. My truck has a 350/700R4/3.73 and it turns about 2K @ 60mph and about 2500 rpm @ 80 mph. I can't remember my tire size, but 255/70/R15 sounds familiar, but your tires are a good bit taller than mine...... odd..... __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!