1978 Ford Truck F250 4x4 with C6 Transmission
#1
1978 Ford Truck F250 4x4 with C6 Transmission
Okay got question I got C6 Transmission that has Park Reverse Natural and my Low Gear witch everytime I put it in 1st it go backwards like Reverse I have no Drive or 2nd Gear my Transmission Fluid go smell burnt I had went to see if it was the Bands but it wasn't I had tightn them up and still does the same thing no drive,2nd gear, and my low gear is still reverse gear???????? now I did go get another 2WD Transmission came out of a 1977 Lincoln with a 460 in it my truck got 400 in it now knowing that my truck got 4WD in it will it bolt up or will the 2WD Transmission go into the shaft?????
#3
Your forward clutch has either burnt the clutches or the lip seal is out. C6 is an easy rebuild and not to expensive.
Otherwise you can use the 2wd trans but you have to dismantle both transmissions to get it done. You have to swap out the tailshaft and the output shaft. Easier method might be to remove the pump, take the entire gear train/clutch pack out of the 2wd trans and install it into the 4wd case and reasemble. 77 and 78 should be totally interchangable.
Otherwise you can use the 2wd trans but you have to dismantle both transmissions to get it done. You have to swap out the tailshaft and the output shaft. Easier method might be to remove the pump, take the entire gear train/clutch pack out of the 2wd trans and install it into the 4wd case and reasemble. 77 and 78 should be totally interchangable.
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#5
You have to have the transmission out to swap the parts.
Last edited by KingBigJoe; 06-07-2012 at 10:17 PM. Reason: I made a slight error.
#6
You have to take the trans completely apart to get the tail shaft out so you might as well just rebuild the one in the truck. One thing to look at if you are going to use the car's trans is, does it have the 2 bolt holes to mount the neu/rev switch that your truck needs ? Not knowing for sure if your car trans would have the switch on the case, some cases don't have them. You would also need to switch the shift lever.
#7
You have to take the trans completely apart to get the tail shaft out so you might as well just rebuild the one in the truck. One thing to look at if you are going to use the car's trans is, does it have the 2 bolt holes to mount the neu/rev switch that your truck needs ? Not knowing for sure if your car trans would have the switch on the case, some cases don't have them. You would also need to switch the shift lever.
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removed the return line front the transmission (it's the one that goes to the rear of the trans) put a hose over that line into a jug. I prefer clear hose for this. fill the trans with fluid and start the truck leaving in park. The trans will pump the fluid through the cooler flushing it out. When it pumps about few quarts stop the truck refil the trains and restart. twice should probably do it, but watch the fluid that comes out and see if it looks and feels clean between your fingers. If needed hit it again.
Some guys will put a inline filter on the return line too. BUT be careful as if it plugs up it will then over heat.
Some guys will put a inline filter on the return line too. BUT be careful as if it plugs up it will then over heat.
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