Has anyone blown out thier Diff Lock?

I've broken freehubs, but never stuffed a derailleur into the spokes...


Back on topic... I'm not sure we're all on the same page:

Most trucks have a power divider which basically locks both axles together -- like 4 wheel drive. Each axle still differentials, so it is possible to spin tires on the same side - though usually they spin opposite corners.

Some trucks also have a differential lock -- which spins both tires on the same axle at the same speed. With the power divider & diff lock engaged, 3 out of the 4 corners will spin.


Driving with the power divider in at highway speeds for 5, 10, 20 miles won't really do any damage. Driving with the diff lock might -- particularly if you were applying a lot of torque and going around curves. That said, most newer trucks will automatically disengage the diff lock once you reach a certain speed.

 

If you blew a power divider, it would not still be operational after all this time

 

My grandfather had a driver snap the yoke going into the Power Divider.. That yoke is only 4 inches of solid steel... Pulling coal, he got spinning pulling up on the scale and then hit the scale and snapped it. It still pulled nicely but made a real bad clank every time you go into the accelerator.

 

Pdl,lockers and 2 spd rearends have certain rules of engagement. Activated by clutch and before spining are recommended. 2 spd rear ends you will have to stop before going to the low side. After running it's a good idea to stop and back up to disengage rearends.