Originally Posted by nonnieselman

my Eaton LSD hasnt let me down in 2 years. even with one tire off the ground. and it stays locked in every condition ive put it in.

Originally Posted by 00ChevyScott

What were you doing with one tire off the ground?

Originally Posted by hirdlej

I've said it before and I'll say it again. The trutrac is nothing more than a torque multiplying rear differential. In a nutshell it can only send power to the left rear when there is traction or resistance on the right rear. For ice, snow, and offroad where your right rear tire could get hung up in the air and be subjected to zero traction conditions, torsen style differentials suck. I know since I've run 2 of them in different trucks. Should have learned my lesson the first time. Now for bare tar or dry pavement, they work just fine but that's it. If you snap or pop the clutch with a manual transmission truck and send that right rear tire into a frazzle, it won't send the power to the other wheel because there's no resistance on the right rear. On a eaton LSD with clutches, both back tires are always moving forward at all times. Under cornering the clutches break free to allow the wheels to spin at different speeds, however when driving straight they're both locked all the time so that if a tire gets in a slick condition or is suspended in the air, it'll still transfer power to the left rear since the axles are held together with clutches, make sense?

Originally Posted by hirdlej

This is a prime example of where a trutrac would not work

Originally Posted by budhayes3

Makes sense, and my truck does see snow, which makes me rethink whether I want the trutrac or LSD...

Originally Posted by hirdlej

This is a prime example of where a trutrac would not work

Originally Posted by midnight_bowtie

Well thank you for clearing that up. I had my mind set on the trutrac thinking it worked the opposite of your explanation. I was under the impression that when the RR tire was spinning the LR would kick in.