FEL-PRO BS 40644 Engine Crankshaft Seal Kit for Ford F-150

Customers find the crankshaft seal kit to be of good quality, with a perfect fit and easy installation that comes with an installation tool. They appreciate its functionality and consider it good value for money, with one customer noting it eliminates the need for an expensive Ford tool. The seal quality receives mixed feedback - while some say it stops rear main seal leaks, others report poor quality with leaking issues.