When my pickup is in 2wd and put it in gear, all you hear is a grinding and,the pick up wont move, but if i put it in 4wd high,and lock the hubs, it drives!, whats the problem?

Asked by Graycharlez Jul 03, 2016 at 09:11 PM about the 1986 Ford F-150 STD Standard Cab 4WD LB

Question type: Maintenance & Repair

Pick up wont drive in 2wd it just grinds but
when,i put it in 4wd and lock the hubs it
drives what's the deal?

35,335

lrodri911 answered 8 years ago

Check to see if driveshaft rotates when you are in 2wd if it does, u have a stripped rear differential, if it doesn't rotate, u have a bad transmission. The reason it works in 4wd it's because ur front wheel drive is doing all the work and not the rear

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