diff pegging

[mungrel breed]

hi all, can someone tell me what diff pegging is, and is it needed?

[chopper]

http://www.aulro.com/afvb/90-110-130-defender-county/192420-diff-pegging.html

google for more

[Blknight.aus]

stops the crown wheel flexing away from the pinion under moments of high stress.