Forum Discussion
Durb
Oct 24, 2020Explorer
You could make an adapter for a 250ft-lb torque wrench. The adapter would be a steel bar with the right size socket welded on one end and a socket welded to the other end to create a 1/2" female drive. For example: my 6014 Proto torque wrench has a functional length of 21.9" when set to 250 ft-lbs (the distance from the center of the handle to the center of the square drive). The calculation for the length of the adapter is a simple ratio:
21.9"/250 ft-lbs = X/380 ft lbs X = 33.3"
33.3" - 21.9" = 11.4" = length of the adapter (center to center)
Set the wrench to 250 ft-lbs and click your fastener with the adapter installed. The adapter needs to go straight out from the end of the torque wrench, not at an angle. If you are using your truck's receiver to hold your hitch head, support it to the ground with a floor jack and load your wrench to the ground, not sideways.
Or you could buy a 3/4" drive 600 ft-lb torque wrench. You could fabricate a really long cheater bar and load it with a spring scale (95 pounds 4' from the center of the drive).
21.9"/250 ft-lbs = X/380 ft lbs X = 33.3"
33.3" - 21.9" = 11.4" = length of the adapter (center to center)
Set the wrench to 250 ft-lbs and click your fastener with the adapter installed. The adapter needs to go straight out from the end of the torque wrench, not at an angle. If you are using your truck's receiver to hold your hitch head, support it to the ground with a floor jack and load your wrench to the ground, not sideways.
Or you could buy a 3/4" drive 600 ft-lb torque wrench. You could fabricate a really long cheater bar and load it with a spring scale (95 pounds 4' from the center of the drive).
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