which rear main seal for magnum motor?

Is there a difference between rear main seals on Magnum motors versus the older LA motors? I have a 5.9l magnum I need to replace it on...or is one better than the other?

If you are using a mag oil pan, use the mag one piece. Otherwise you need to use the la gaskets with the la pan

The Magnum rear main seals are the same 2 piece design as the earlier LA motors. Make sure to buy a quality Fluoroelastomer (Viton) seal.

I offer these through my distributors on here as #9360 for the 5.9L (360) Magnum.