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Discussion Starter · #1 ·
Just a question for you guys using the zf trannies.

My donor bread van had a Ford T19 setup, When I took out the clutch that came in the breadvan, it was 12" diameter, and the clutch surface was 2.125 inches wide. When I went to the store to get a pressure plate and clutch for the Zf-42, the only thing I could find was 11" diameter, and the clutch surface is only 1.625 inches across - that is quite a difference. Are these clutches holding up against the 4bt torque?

For reference, I'm installing this into a full size dodge truck that weighs roughly 5,000 lbs, and don't plan on pulling anything heavier than a motorcycle trailer, or small camper.

If the 11" clutch isn't right, can someone point me in the direction of a 12" clutch for the zf-42?

thanks
Craig
 

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Good question....have the parts store order a clutch for a F-350 with a 460 in it. Maybe a late 70's or early 80's model, then compare.
 

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as Ford 12" clutches go there aren't too many to choose from. I think there's an early one used in FE's that has 6 pressure plate bolts and a late one used by the 385 family with 8 bolts. When the 460 went to a 5 speed it went to a larger clutch (12.5"?) and an 1 1/4 10 spline input.
 

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Discussion Starter · #7 ·
Thanks to the guys that have run them - it just looks pretty "wimpy" next to the one that came out of the breadvan.
 

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as Ford 12" clutches go there aren't too many to choose from. I think there's an early one used in FE's that has 6 pressure plate bolts and a late one used by the 385 family with 8 bolts. When the 460 went to a 5 speed it went to a larger clutch (12.5"?) and an 1 1/4 10 spline input.
The 1983-1987 460/4speed equipped F-250/350 used a 12" 10 x 1 1/16 clutch. Will this work with the SBF ZF5 and the 4BT?
 
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