M-6701-B351 rear main seal installation question

[One_fast67]

I have a Ford Performance Parts M-6701-B351 rear main seal for my 351W, but I am having a hard time finding installation instructions. I couldn’t find anything on the FPP site and the seal didn’t come with any instructions. Has anyone used this seal and has feedback on how to install it?

 

[Aussie67]

The seal itself isn't hard to change out, but you will need to take the gearbox and flywheel out to get to it.

I have changed that type of seal many times without taking the sump off. But If you haven't done it before I suggest you watch some you tube clips before starting it.

 

[B67FSTB]

I presume you know the seal has a front and back side. With a small screw or two you can pull out the old seal. But before doing that , clean up the area as you won't have dirt inside the engine.
You can tap the new seal in place with a small yet flat headed hammer. DON'T distorn the seal !!! Just tap slightly on the outer edge of the seal in a manner that the seal goes even deep around. And put on some sealer on the outside edge.
Best way I can explain.

And Youtube of course.
REAR MAIN ENGINE SEAL REPLACEMENT

Verstuurd vanaf mijn SM-A605FN met Tapatalk

 

[One_fast67]

I should have mentioned that the engine is in the process of being reassembled so it is already out of the car and doesn’t have one installed currently. I’ve done a YouTube search but haven’t found one specific to this seal. Most of the ones I have seen appear to be the Felpro seal that looks different. I know that some seals should be lubed prior to installation and some need to go on dry. Since there weren’t any instructions that came with my seal, I assume it should be lubed. Does the seal go in until it stops? Flush with main cap?

 

[Aussie67]

I haven't lubed the ones I have fitted but I don't think it it would hurt. It should go in so that it sits flush with the outside of the seal housing.