4440, 4450 and 4455 use the overdrive 2 speed because the changed the final drive ratio to reduce the stress on the trans and used the overdrive 2 speed to keep the ground speeds the same as the other tractors. All others used the underdrive one.
You can easily pull the clutch valve out and see whether it’s an under or over drive one by looking at the position of the larger planet gear, larger one towards the rear is an overdrive one.
The operating lever is flipped 180 degrees when comparing a 4430 to a 4440 because the clutch/brake functions are swapped.
It’s possible your parts machine had the overdrive gear set, it’s generally done when you want to go a bit faster. It’s commonly done by pullers to split the trans speeds a little faster, I have one setup that way, I run the same gear as the rest of the pack, but I’m about 28% faster gear wise. Makes road gear real fast, like close to 30mph at 2600 rpm.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Grain Threshing in the Early 40's - by Pat Browning. The setting is rural Wisconsin, halfway between East Troy and Elkhorn, on Hodunk Road, our nation was at war, and I was 6, 7 and 8 years old. George was our "threshing neighbor." He was the one with the threshing machine, a JI Case on steel wheels, and he pulled it to our farm with a JI Case standard tractor also on steel. In those days, steel wheeled implements were common. The roads were general gravel, so the lugs cutting into them wasn't a problem. George would set up the thresher, s
... [Read Article]
Latest Ad:
1 SD Gibson, 1 D Model needs rear end assembled and installed, 1 D Model needs minor repairs, extra parts
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
