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I have a 1979 ford f250 4x4 and the tranfer case will go in but it wont turn the front driveline

\015 My 79 ford f250 has a 205 tranfer case in it for the 4x4. i try to use the 4x4 and the transfer case goes in just fine but it wont turn the front drive line. what would cause this?\015 Posted / edited by AnonymousUser on : 16-07-2018

Answers :

I am a bit rusty on the 22 year old part. Someone else may be more informative, but on some of the 4x4 actuators they used different methods of moving the internal parts.

The actuator used to be Vacuum operated and the part would move a certain distance to put the transfer into high or low mode. If the actuator did not fully extend or contract you would be between gears; sort of in Neutral.

You are now faced with the front driveshaft free-wheeling(But which end?). Disconnect one end of the front driveshaft so you can feel whether the transfer case is free-wheeling or if the other end of the shaft is turning anything in the front axle. With the front hubs locked, the front driveshaft should not turn or if jacked up, the tires should spin when the front driveshaft is turned by hand.

When you are assured that the front axle is fine, then the problem can only be the transfer case. I remember people had a lot of trouble with the actuators.

I hope this gives you a way to test which end of the front driveshaft is the problem.

There are some Blogs on the internet like Ford4x4Owners.com and Off-Road Blogs which can be very helpful. I hope my suggestion helps.
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