http://www.team-durango.com/part-inf...artNo=TD310417
I ran a Dex210v1 with the shorter outdrives with a Hrc block and never had issues but as soon as i went the the -2 Lrc block I was popping drive shafts.
Above outdrives fixed it. also the dex210v2 includes the longer outdrives amazing what 1.2mm of extra length can do
Also little article on oople about it
http://www.oople.com/forums/showthread.php?t=125130