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Old Jan 24, 2010 | 10:51 AM
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From: Faibanks Ak.
ZF5s

Does any one know off the top of their head what year the diesel ZF5 changed from the 42 to the 47 model. Thanks.
 
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Old Jan 24, 2010 | 11:06 AM
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I was looking at a site for rebuild kits and it listed 87 threw 94 as S5-42 and 95-97 as S5-47. That said the 5 speed I put in my 85 cameout of a 93, and written on it was ford 95 diesel, like you see when you get parts from a wrecker. My 97 has a S5-42 in it, but I don't know the history on it.
 
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Old Jan 24, 2010 | 11:22 AM
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Well that probably answered my question. I have one I pulled out of a 91 that has been in storage since 95. I was hoping it was a 47 but it sounds like ut will be a 42.
 
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Old Jan 24, 2010 | 01:16 PM
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What's the difference in a 42 and 47? Gearing?
 
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Old Jan 24, 2010 | 01:46 PM
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I think there is a difference in gearing. But the big difference is the 42 is rated I belive for 420 pounds torque while the 47 is 470 pounds.
 
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Old Jan 25, 2010 | 10:02 PM
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Starmilt, drivers side of the transmission, about the shifter location front to back and about 1/3 the way down the side from the top should be an ID plate.

It will have the model number and gear ratios marked on it.

Three different gear ratios in both the 42 and 47 were available.
42 had two torque ratings
4.14 low gear ratio was 433 ft lbs
4.65 low gear ratio was 433 ft lbs
5.72 low gear ratio was 419 ft lbs

47 was 462 for all ratios
Low gear could be 5.72, 5.08 or 4.14.
 
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Old Jan 26, 2010 | 12:15 AM
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From: Faibanks Ak.
Thanks Dave I may even look at another one tommorrow.
I'll try to look at mine in the next day or two even though it is the lowest torque I hope they are the 5.72
 
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