I was driving down the road and the back wheels lock up. I jack the back of it up it will turn freely in or out of gear but when I let off the clutch. It's like the braking brake is on but the wheels will turn my hand.i need help.

 

Mustang Guy, please start your own thread.

We also need more information,

Year, 4x4 or RWD, Manual or auto trans,

 

2006 good ranger 2.3 5 speed 2wd

 

With transmission in Neutral and rear wheels off the ground, see if you can turn the drive shaft by hand, I would guess NOT

You will need to drop the drive shaft(4 bolts on the differential) and see if you can turn the pinion flange(part the drive shaft connected to), rear wheels still off the ground
Also with drive shaft still in the transmission, and trans still in Neutral, see if you can spin the drive shaft

Which even doesn't spin that's the problem, differential or transmission

 

I have it up off the ground in neutral and in gear the wheels still turn freely. When I let off the clutch in gear it try but it's like it has the e-brake on. I even disconnected the driveshaft from the rear end.

 

Turning the wheels doesn't tell you anything, EXCEPT that the problem is not an e-brake issue
Wheels/axles are free to spin because you have an OPEN differential

Turn the pinion yoke, what drive shaft was connected to, turn it in both directions, one wheel should also turn when you do this, if you can't turn it then problem is in the differential

Turn drive shaft while its still attached to transmission(in neutral) if it doesn't turn then problem is in transmission