So I was thinking about this today (after putting flexane in my stock mounts)....

And I really dont see why one couldnt do it himself for cheap. Buy the polyurethane mix, clear out the stock mount, and pour it in.

I talked to my brother about it and he said the big problem would be keeping that metal sleeve lined up and in proper place while it sets up. Well my solution to this would be a plaster mold.

Take the stock mount and lay it down on it's side in plaster therefore making a mold of that side of the mount and also a 'pocket' for the sleeve.

Do the same to the other side. Clean out the stock rubber and get the metal sleeve. Lay the mount over on it's side resting on the plaster mold.
Set the sleeve in the 'pocket' so that it's free standing and held in place. Pour in polyurethane and then set the plaster mold on the top of it as well lining up the sleeve in the top pocket. Then let it dry.

Is there any reason this wouldnt/couldnt work?

 

This is covered in the 4th Gen FAQ

 

I dont see what I'm talking about in there....

I see filling the stock ones with flexane, as I have already done and mentioned above.

 

Benefits of doing that? Sounds like a lot of work for something that could be accomplished just as easily as filling the stockers with polyeurathane, or flexane, or whatever.

And speaking of which. How ARE the benefits of filling the stock ones with Flexane?

 

All the 3rd gen guys seem to love filling them with Flexane but they say they could be stiffer. I just filled mine yesterday and I've gotta wait a week to put em in.

Poly is stiffer than the flexane and it'd be full poly as opposed to 'filled' flexane.

 

Use clay. Get a block and cut it down to the appropriate size. Then stick the sleeve where its supposed to be in the mount and have it held in place by the clay on the bottom. Not only will it hold the sleeve in place, it'll plug the bottom end up.