3 months back, I bought a set of Pensacolas. I put em in, and my truck ran with a huge cloud of blue smoke and had a loud knock. Plus it wouldn't start instantly like it would with the old ones, I'd have to crank it an extra second, and then flood the air with blue smoke.
I finally bought a matched set of new BB's from Mel, and all that stuff went away. Can't even feel it idling while sitting in it, no smoke, starts right up and doesn't knock, and it gained a noticeable amount of power.
If you can squeeze it, go new. Remans are hardly better, sometimes worse than what's already in your truck. This is coming from one of the world's biggest penny pinchers.