No rear diff lock over 5mph?

I had to replace my differential it broke when engaged. Don't use above 5 mph

 

lol my lsd is starting to slip

 

I sense a david k reply by no later then this evening..

 

i've hit close to 70 with mine engaged. (although i wasnt actually going 70, just slingin 70 mph worth of mud) but as soon as i got out of the soup i turned it off and mine still works fine, i do stop to engage and disengage, no need to chance anything breakin because of that.

 

Yup. if you are on pavement and you have 2 wheels turning at the same speed in the rear and you try to turn your turn radius is great reduced due to the lack of "skidding" of the tires. you will actually hear the tires chirp while turning. Ive accidentally had it on hopping on roads for a mile or 2 to hit the next trail and you can definitely feel the truck fighting you to turn.

Ive gone even faster locked prob round 80

 

damn revived thread. haha

 

When the diff is locked, it restricts the wheels on each end of the axle from spinning at different rates. This makes the vehicle resist turning.

See video link:

http://youtu.be/K4JhruinbWc

 

I drove 700 miles home at highway speeds up to 75-80 mph with my rear end locked the entire way, BFE Moab to my house in Reno. I had a blown side gear though.