Review on Enhanced Ford Racing M-6701-B302 🔧 Rear Main Seal for 5.0L Engine by Gage Lawson

later Think about it this way - no matter what brand you buy, it's a cheap part that will require an inordinate amount of labor to replace. So doesn't it make sense to spend a few extra bucks to ensure you're replacing your old leaky one with the best replacement available? Having worked and built Ford Windsor engines for over 25 years, I can say with confidence that this is the best rear main gasket you can buy for these engines.