C6 in park
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5th Wheeling
Joined: Jan 2005
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C6 in park
I have a '91 F350 with 300-6 and a C6 transmission. I hook a trailer to this truck with a winch on it and load heavy Mesquite logs by dragging them up a ramp onto the trailer. I leave the engine running to keep the battery from running down and the transmission in park to prevent the truck from rolling backwards. How strong is the park gear? Can this hurt it?
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Joined: Jan 2001
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From: Nebraska
I've never heard of one breaking, but I always tell people if you saw what "park" actually was in a transmission you'd probably treat it different. I'd definately use the parking brake too as that's what it's there for.
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Joined: Apr 2005
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From: Hawkeye Country
No idea how strong it is, but that much tension may be enough to break it.
Personally I'd stop the truck in neutral and put the parking brake on, then block the tires, finally I'd put the transmission in park. All that weight being held back by the park gear only is never a good thing.
Personally I'd stop the truck in neutral and put the parking brake on, then block the tires, finally I'd put the transmission in park. All that weight being held back by the park gear only is never a good thing.
Elder User
Joined: Dec 2006
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From: Hillsboro, OR
Originally Posted by jimbo beam
Personally I'd stop the truck in neutral and put the parking brake on, then block the tires, finally I'd put the transmission in park. All that weight being held back by the park gear only is never a good thing.
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Joined: Nov 2006
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From: Quad Cities, IA
I've rebuilt a few automatic transmissions myself, and have seen only one that the parking pawl was broken. That was caused by someone throwing it in park while it was still rolling forward one too many times.
I would follow the others advice and not use it as your only means of keeping the truck stationary. While it would probably take a while to cause any significant damage, it really can't be all that good for it. Blocking the wheels is probably your best bet, unless you can anchor the truck to some other stationary item such as a tree or pole.
I would follow the others advice and not use it as your only means of keeping the truck stationary. While it would probably take a while to cause any significant damage, it really can't be all that good for it. Blocking the wheels is probably your best bet, unless you can anchor the truck to some other stationary item such as a tree or pole.
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One time, I was pulling a 3500 lb sailboat out of the water, and I had to adjust the truck, so i hopped in, popped the e-bake, reversed a tiny bit, and forgot to set the brake the 2nd time, just park. It came out of park with a loud bang...I won't do it again.
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5th Wheeling
Joined: Jan 2005
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Thanks to all for the information. I am going to stop doing it this way and go back to the way I used to do it with a standard transmission. Leave it in neutral and put my push gadget between the seat and the brake pedal. Locks all four wheels. It was just so darn simple to put it in park.
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Elder User
Joined: Dec 2006
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From: Hillsboro, OR
Originally Posted by booman
Thanks to all for the information. I am going to stop doing it this way and go back to the way I used to do it with a standard transmission. Leave it in neutral and put my push gadget between the seat and the brake pedal. Locks all four wheels. It was just so darn simple to put it in park.
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You can get line locks from summit, jegs, and probably still jc whitney.
The only bad thing about that is if you leave it on to long it can make the rubber brake lines swell. They tell you in the directions not to use them for more then 30 or 60 seconds.
The only bad thing about that is if you leave it on to long it can make the rubber brake lines swell. They tell you in the directions not to use them for more then 30 or 60 seconds.
