Need a 34-35 inch tire for stock 16 inch wheels
Hi,
I don't know a whole lot about wheel/tire combos and have looked around a bit and can't find an answer so thought I'd ask.
I've got the stock "alloy" 16 inch wheels and 235/85/16 tires on my '99, F350 DRW 4x4.
I'd like to go to a larger diameter tire and lower my highway speed RPM; I have the 4.11 rear end and at 65mph, see about 2250-2300rpm.
The way I figure it, my current tires have a diameter of 31.7 inches.
A 35 inch tire would lower my effective rear end ratio to 3.72 (31.7/35 x 4.11 = 3.72) which actually might be a bit too low.
My question: what tires will fit my current wheels and have a diameter of at least 34 inches and not more than 35 inches? --And they need to be at least E rated.
Thanks a lot.
__________________
1999 F350 DRW Long Bed Crew Cab 4x4
DP Tuner chip w/ 60econ, 120race, decel, hi idle and old SuperChip Boost Tube still installed.
VDO gauges, Ford AIS Extreme Duty air filter, MagnaFlow Exhaust, 6.0 cooler, Maghytec rear diff cover w/ Mobil 1 75W-140, Mobil 1 ATF in trans/transfer case/powersteering, Magnafine filters for tranny and power steering, Airbags, Rancho RS9000XL shocks, Torklift Swaystops, 2 layers Dynamat Extreme on interior roof/floor/doors, Dynamat Xorb on Firewall, Alpine IVA1000 and amp, Python Alarm, 203*F Dieselsite thermostat,
Purchased "new" in 2008 w/ 59k miles.
Carries 5000lb+ Lance Camper
Last edited by farnorthdriver; 10-07-2009 at 01:50 PM.
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