rideoffroad
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I have a m818 half stuck in the mud,the back wheels half in the mud a little up hill and the winch keeps breaking shear pins,do you guys think that is normal? 
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M818 winch question
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porkysplace
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Are they the correct shear pins ?
Are the holes slopped out or a nice tight fit ?
Pictures of how stuck you are might help .
Are the holes slopped out or a nice tight fit ?
Pictures of how stuck you are might help .
rideoffroad
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Yes they are the right shear pins ,everything is tight and looking good,sorry no pictures.just seems the pins are breaking real easy.
porkysplace
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Single line pull or using snatch blocks to increase the pull ?
Kinda sounds like it is stuck on the axle housings.
Kinda sounds like it is stuck on the axle housings.
rideoffroad
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Single line and rpm just off idle with wheels driving.Do you guys think it's better to always double the line?I used lots of winches on smaller trucks and jeeps.Kinda new to the heavy trucks.
rideoffroad
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Also see another problem when sheer pin breaks being on a hill nose up ,the drive shaft sides back and falls off winch.That could hit the oil pan or break drive shaft,Iam going to make some kinda hanger for that.
rideoffroad
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Well the winch is new to that truck,the drive shaft was kinda seized on ,so I clean shaft and stub on winch it's a snug fit ,but I did put some anti seize on shafts,maybe better with out?
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I'd say there is another issue here. Maybe the winch brake is dragging... (Is it possible a rear axle is hung up on a stump?)
I would think (without seeing the actual situation) the stock winch should be able to move the truck, single line, at idle, not driving, without problems.
Snatchblocks/doubling-tripling the line would be for much heavier loads.
Have you done your calcs re how much pull you need to move the truck.
You are not pulling the weight of the truck - it is on wheels - just use it's weight for calc purposes.
How deep is it stuck in the mud (what you have to pull the rear tyres through)?
What angle are you pulling it up?
I would think (without seeing the actual situation) the stock winch should be able to move the truck, single line, at idle, not driving, without problems.
Snatchblocks/doubling-tripling the line would be for much heavier loads.
Have you done your calcs re how much pull you need to move the truck.
You are not pulling the weight of the truck - it is on wheels - just use it's weight for calc purposes.
How deep is it stuck in the mud (what you have to pull the rear tyres through)?
What angle are you pulling it up?