Not only do I need to finish that article, but it also needs to be re-themed and adapted to the new website layout/design. It also needs to be updated to include the new XtremeDuty dual case which totally blows away all the older designs too.
For now, as for the thrust washer, I wrote a short feature for that on the Exploring the New Marlin Crawler MC07 XD Technology page, use this link to jump to the Thrust Washer Lock section:
Thrust Washer Lock System