What is wrong with my F150
It eats tires. The BF Goodrich Long trails that came on it lasted only about 20,000 miles. I put on some Cooper Discoverer Plus. Another 15,000 ish. Then I put on Michelins. And now at 65,000 miles on...
Forum Discussion
down home wrote:jdog wrote:down home wrote:
Our F150 has factory limited slip. Probably time to examine the clutches and steels. It doesn't slip much. It is a 5.4, with 3.54 gears, I think. It can spin the tires if I demand it.
Maybe you have 3.73s? Maybe the rear end needs tightening up?
We had a couple, of Dodges with gear lockers, in the rear end. Even with the 3.18 it was exciting on wet turns. There was more wear, on the rears from turns. The gear lockers don't slip much, at all, under any power, in turns. Got pretty good tire wear, on the 2000 Dodge though.
Bad alignment, even if with factory tolerances can wear tires,on edges and cup etc. Having tough time to get Dealer to set exactly on spec and not with tolerances. He doesn't know or care but I think he just lost a Customer, if I don't change my mind.
The clutches wear in a limited slip. use to a rule of thumb to tighten the clutch pack at about 50,000 miles. I don't see a lot of slippage but probably should. The higher the numerical ratio, the lower the gear and the easier it is to spin the tires or for the tires to leave a little rubber even at reasonable acceleration becaause of torque multiplication. NHTSA forced a rule several years of max acceleration of 3.3 mph per mile per hr or some such. Slam the pedal to the floor and it accelerates worse than at 1.4 throttle. They played all kinds of games with the electronic master. reprogrammed you could probably burn the tires off.
Why would 3:73 make the tires spin? How do you "tighten the rear end"? I guess 3:73 must be super power gears, sure they are!
I know about gear ratios! Lower gears are for more pulling not spinning tires! By the way, limited slip rear ends only work at low speed, not when your going down the road.
