Diff ratios
#1
02-14-2019, 10:59 PM
Diff ratios
new to the site and finding my way around . I have a 2000 f150 Lariet 4.6 litre . I have put 35 inch wheels on it which has obviously messed with the gearing . Wander if someone can sudjest what gearing I need . Truck is used primarily on the road , nothing too aggressive . Appreciate some help. Bogs down on Inclines
#2
02-14-2019, 11:21 PM
#4
02-15-2019, 08:42 PM
Never mind what is in there now. Who knows what previous owners did. Check the door sticker. Then you will know what the stock gear ratio is suppose to be.
Now you can decide if you want to return the vehicle to stock specs, by installing the OEM size gears, and OEM size tires. Or stay with the 35" tires, regear accordingly, reprogram your transmissions shift points to operate correctly, and reprogram you car's computer to read correctly at the speedometer and odometer.
https://tiresize.com/gear-ratio-calculator/
.
Now you can decide if you want to return the vehicle to stock specs, by installing the OEM size gears, and OEM size tires. Or stay with the 35" tires, regear accordingly, reprogram your transmissions shift points to operate correctly, and reprogram you car's computer to read correctly at the speedometer and odometer.
https://tiresize.com/gear-ratio-calculator/
.
#6
02-19-2019, 05:51 PM
#7
07-12-2019, 09:32 AM
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#8
07-14-2019, 07:31 PM
Hi David , thanks for your reply. Tyres I have on it are 35 x 12.5. 17 inch rims . Little highway running 100kms /hr but mainly around town. I would imagine the diff ratio at the moment would be standard , what ever that is , not all that up on this stuff, No real off-road work , don't need anything too aggressive .
Thanks
Thanks
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