Watch the 1-4-5-4 Motown Groove online guitar lesson by Andrew Ford from Bass Groove Survival Guide
Lets tackle all 3 of these old school bass lines, quite a task to keep all the syncopation together. Of course, back track and revisit any of the earlier lessons if need be. The most important thing is not getting through the lesson, but learning it well enough to be able to apply the concepts when you are done. Thats when you know you have it.