Finally getting back to getting my engine back together. I noticed some decent groves on the damper/pulley, and wondering if I should use a Speedi-Sleeve. My trusty Tom Monroe engine book doesn't mention anything about them. And if they are used, the seal is riding on a bigger OD which may fail the seal sooner. Or should I try to place it in the cover at a depth where it avoids the grooves, like I did with the rear seal. Attached is a pic, what do you think?   Also, the factory color for