Attached is a pic of shaft wear from under the original split packings on my 12jc. I am running a moderate output 455 Olds and don't want to replace the packings again for a long time. Options are:
1) Standard Split Packing - (Comes w/ kit, no extra expense, ??Performance)
2) Black Graphite Rope - (Moderate expense, may seat better on worn shaft)
3) New Style Packing Replacement Unit - (Most expensive, no maintenance required, but relatively untested & unknown effect of previous wear on shaft)
:argue:
Waddaya think?