Can you post a picture? Short of a picture, then we are all guessing.
My guess would be SMTA or more likely a 400 rearend (with factory TA delete) transplanted.
Is the PTO live or not? (Does the PTO stop when you push foot clutch in)?
Record each gears mph speed at WOT. While this will not directly answer your PTO question it will give you a clue as to whether or not your rearend is orginal to a 1948 m. You can do this with a modern GPS or alternatively measure the distance between 2 known points like fenceposts or trees and then use a stopwatch to see how much time in seconds it takes to cover the known distance between the two points (try to have at least 100 feet but anything closer to 200 feet or more is better as your travel zone. No need to hit an exact number either. The longer you make your 2 points then the the less error you will have in your calculations but it does take more effort to measure longer distances out with a tape measure too. Finally do some math to convert your recordings to to mph. Once you know each gears mph speed at WOT then you can then look at speed charts to determine if you have standard M gears or (Super M, Super MTA gears, or 400 gears). For example a regular m will do like 5.2 mph in 4th gear where a super or 400 will be like 6.6 mph in 4th gear both at WOT and with stock size tires of course.
Try looking at the casting codes on the rearend. Deciphering the casting codes can determine year and model.
This post was edited by rankrank1 at 10:08:02 03/23/15 5 times.
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 - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
