I love this kinda stuff!! I'll have a look in some of the books I have from St.Thomas, and see if I can find anything.
On my drive shaft from front to back is: a glob of pink followed by a glob of black. At the end is two neat yellow stripes. On the build sheet under driveshaft: 17=C,19=L and 21=L. This is a 72 Grabber built in November 71. Hope this helps.
For the heck of it, I dug out the build sheet for my '74 Grabber. Has "CCO" under "DRIVE SHAFT COLOR CODES".