[drwoodchopper]

So I am doing the ZF5 swap. I need some advice on a clutch to go with..I will be buying it all with solid flywheel. Look at my mods and see what you think. I will tow a fair amount 3-5k 1 day a week @ 200 miles. 11k a couple of times a year...rarely more. My research for "best fit" for what I want has me pointing to a South Bend heavy duty organic #1944-5OKHD. Rated @ 425hp and 800tq. I really don't want to spend $825 if I don't have to. I also have looked at the valair stock one rated @ 375 and 850 # NMU70263 and $530. I have heard good things about that valair...but it might not be enough. Mixed on South bend but nothing on the heavy duty version of the organic. What about Luk? I have an extremely long steep driveway that I will be backing these trailers up and will have to do it in 4lo. I don't race, sled pull or anything. Goal is to get 70k miles or more out of it...I can live with that.
Thanks

 

[Steve83]

LuK was the OEM for Ford clutches, and still is for many makes.

 

[974x4PSD]

The stock rated Valair will not hold the power your engine makes. I have 160/80 injectors with a D66 and mine slips. Get the kevlar Valair or Southbend.

 

[Radioflyer]

Another vote for southbend. The 1944-5OFERK is a nice driving clutch and isn't loud like some of the Dual Discs can be.

 

[974x4PSD]

Not that you are considering it but stay far away from the Napa/Advance auto perfection clutches. They are Luk stamped but are terrible. I put one in my crew cab when I converted it to a 5 speed. It is so grabby. There is literally no slip to it.