What to use for the transmission cooling lines

I have ran rubber and hard lines before....either way will work, but rubber can be troublesome.

You will most likly have to deal with leaks at one point or another and if you do run rubber you do not want to run it the entire length...only a 3 inch piece or so in between metal line and even then you will want to flare both ends and probably double hose clamp it lol.

So ya,stick with all metal and avoid the hassle involved with rubber line.

Rubber line is more of something I would use if you popped a metal line and needed a quick fix but if your doing all new than just do it all the right way and be done with it.

Good luck