I agree i have posted on this exact subject before. I have a earthquake 3.5 and have trashed my original diffs.  I agree i was way too hard on

them driving on hard pavement and turning with the front wheels off of the ground.  I didn't even expect redcat to warrenty the parts. I ordered

"factory replacement parts",  ya right.  I have both sets of gears and the originals are way better quality.  I am now on my third set and I am afraid

to run the truck because i know they won't last 2 tanks nowmatter how I drive.  The replacement diffs just plain suck!!!!!!!!!!!!!!