79 f 150 4x4 low range front drive only - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
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post #1 of 10 (permalink) Old 03-26-2013, 03:21 PM Thread Starter
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79 f 150 4x4 low range front drive only

My 79 f 150 is an automatic.. 4x4 works ok except in low range, only the front wheels drive... the rear wheels dont turn.. but they work okay in high range... any ideas and how much of a job for the repair...thanks
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post #2 of 10 (permalink) Old 03-26-2013, 07:53 PM
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Re: 79 f 150 4x4 low range front drive only

Transfer case fix bro.... $1200 bucks.
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post #3 of 10 (permalink) Old 03-27-2013, 05:43 AM Thread Starter
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Re: 79 f 150 4x4 low range front drive only

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Originally Posted by FEandGoingBroke View Post
Transfer case fix bro.... $1200 bucks.
dang... ok.. thanks
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post #4 of 10 (permalink) Old 03-27-2013, 12:03 PM
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Re: 79 f 150 4x4 low range front drive only

You know what transfer case you got? My guess is a NP205 since a chain driven one shouldn't exhibit this behavior. Either way, something is up with the transfer case. Either it isn't shifting correctly or you got some good damage in there (hard to believe when you see the gear size). See if you can shift it without using the shifter (you'll see the shift rods sticking out) into 4-Lo to see if that does the trick. If so, it's just the shifter/linkage that's worn.
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post #5 of 10 (permalink) Old 03-27-2013, 08:36 PM
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Re: 79 f 150 4x4 low range front drive only

Shifter or sheer pin breakage or fork issues. Either way it's a remove and take down then install again....$1500 to $2500.....
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post #6 of 10 (permalink) Old 03-28-2013, 07:46 AM Thread Starter
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Re: 79 f 150 4x4 low range front drive only

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Originally Posted by bassman97 View Post
You know what transfer case you got? My guess is a NP205 since a chain driven one shouldn't exhibit this behavior. Either way, something is up with the transfer case. Either it isn't shifting correctly or you got some good damage in there (hard to believe when you see the gear size). See if you can shift it without using the shifter (you'll see the shift rods sticking out) into 4-Lo to see if that does the trick. If so, it's just the shifter/linkage that's worn.
Im pretty sure its an np205..pretty sure it happened when I was backing up one day...it goes into 4 lo okay... only the front wheels turn though...
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post #7 of 10 (permalink) Old 03-28-2013, 07:49 AM Thread Starter
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Re: 79 f 150 4x4 low range front drive only

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Originally Posted by FEandGoingBroke View Post
Shifter or sheer pin breakage or fork issues. Either way it's a remove and take down then install again....$1500 to $2500.....
I dont know much about the insides of these cases but Im bettin its a sheer pin cause there were not much noise when it happened...maybe some whining ..anyuway, more than truck is worth almost..
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post #8 of 10 (permalink) Old 03-28-2013, 08:39 AM
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Re: 79 f 150 4x4 low range front drive only

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almost..
LOL Yup, key word right there... good luck
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post #9 of 10 (permalink) Old 03-28-2013, 09:51 AM
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Re: 79 f 150 4x4 low range front drive only

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I dont know much about the insides of these cases but Im bettin its a sheer pin cause there were not much noise when it happened...maybe some whining ..anyuway, more than truck is worth almost..
That and places like Jeff's Bronco Graveyard sell used ones for only a few hundred bucks. But like I said, you can always check the stuff outside the case (shifter and rods to/from it) to at least rule that stuff out. But now you've discovered why this transfer case is coveted by off-roaders (strength and twin-sticking). If you want to save a few bucks too, many places online have good tear-down write-ups. The nice thing about the NP205 is it's simple.
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post #10 of 10 (permalink) Old 04-05-2013, 06:43 PM
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Re: 79 f 150 4x4 low range front drive only

If you are in Pennsylvania they are a dime a dozen. FE wants 15 to 25, you can buy a complete good running truck for less, minus the rusty body that is.

check out this site there are quiet a few trucks and also parts.
www.pennswoods.net

"Tell it like it is or don't tell it at all" 1964 Falcon 2dr HT, 347V8 4V, dual exhaust, 5sp, pwr assist R&P steering, AM radio, heater with defrost and 2sp fan, electric windshield wipers, cigar lighter, dlx light group, bucket seats, console and full carpet.

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