The Farm Jeep Book

lhfarm

Bigger Hammer
All-Star
Jul 26, 2015
26
Central Indiana
First Name
Barry
Willys Model
  1. CJ
Willys Year:
  1. 1949
I have just launched https://www.farmjeepbook.com/. It is a free-to-read e-book. Use your phone, tablet, or PC. The book was written for the people I meet at farm shows. They read on their phones and don't care about references or citations. But I think you will find it interesting reading.

I'm hoping that as you read it, you will drop me a line with suggestions on how to make it better. I've already got great feedback, such as the need to do more on PTO and on governor testing and development that came before the Love lift. I'm going to need help with that. I don't know that anyone other than Fred Coldwell in his book has researched those topics. I am open to any and all comments. Criticism isn't a bad word.

I'll be honest. This was rushed because I wanted to get this out before the show session started. I attended the same show I was at in 2012, which started me doing this research. I know there is lots of work to do in the "Dig Dipper" section. But today I could say, "Go read this book," instead of saying, "Go to farmjeep.com and try to figure it out."

Barry T.
 
I've always loved these things. Having seen only the demonstration video and an advertisement before starting your book, I'm looking forward to learning everything about the Farm Jeep. Thank you for bringing it forward!
 
“The story spans from the muddy fields of 1900 to the 1970 model year — when the Jeep quietly stopped being a tractor and became a toy.”

Basically by dropping the offset model 18 transfer case and completely re-directing advertising to recreational uses, plus the impending AMC change in ownership.

I’m looking forward to reading more!
 
I just finished reading and watching it all. Very good read and that video, seen and forgotten long ago, was priceless to watch again in the context of the surrounding farm Jeep story.

I made a comment earlier about how, IMO, the farm Jeep ended with the replacement of the model 18 by the model 20 transfer case, but the re-location of gas tank, as written in the article, was right there at the same time. My opinion might have been affected by the story I remember from the 70s about the farmer who bought a new (AMC) jeep to replace his older one, something he did every few years. Apparently, when realizing that he couldn’t adapt his PTO to the new CJ he blew a gasket and demanded that the dealership install a new model 18 for him on his new Jeep. I assume that they had to relocate the gas tank as well, but I don’t recall that part of the story.
 
I just added an EPUB (e-reader) download button. I had heard stories of people in 1970 demanding that dealers replace the between-the-rails tank with the under-the-seat version. I would like to know more about the model 18 replacement. Any chance you could send me more information? This is exactly the type of information I hope to add to the story.
 
The Dana-Spicer (Brown-Lipe) model 18 transfer case was used from November 1940 to 1970 or 1971 in three basic versions, with some sub-versions of each. They had an off-set drive system that allowed for the easy installation of a PTO (or an overdrive) in direct line with the engine crankshaft and transmission output shaft. The advantage of this (whether planned, or "dumb luck") was that a PTO (or an overdrive) could be easily added before any gear reduction or transfer (4WD) of power was directed to the wheels. The disadvantage of that design was that all the power to the wheels was always "transfered" due to the offset of the output shafts. This resulted in higher operating temperatures, increased wear and noisy operation. An extra gear, the intermediate gear, was required to correct the change in rotation so that standard automotive drivetrain components (differentials) downstream of the transfer case could be used. (Modern transfer cases eliminate the intermediate gear by using a chain drive which does not require a change in rotational direction.)

The "Silent Drive" model 20 was introduced in the CJ line in about 1971 or 1972. The straight through design (output of the transmission/transfer case in 2WD went straight through the transfer case to the rear differential. This configuration reduced the noise, higher operating temperatures, and had fewer constantly moving parts in 2WD at highway speeds. The disadvantage was that it became very difficult to adapt a PTO or overdrive to the transfer case becasue that "spot" was now occupied by the output shaft. I don't recall what company tried, but there was an attempt to develope a PTO attachment that bolted on to the transfer case oil pan rail. Other OWFers will surely add some detail.
 
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