Depends on engine, rear axle ratio, and transmission first gear ratio. An automatic is prefferred by the truck makers because the torque converter gives nearly a 2:1 ratio on top of the 3:1 in the transmission.
On my '98 F-150 with 4.6L V-8, 5 speed with 3.92 first gear, and the original 3.08 axle it was rated at 6500 pounds Gross Combination Weight (GCW) or 2200 pounds of trailer. With a 4.11 axle I rate it at 9900 pounds GCW and 4700 pounds trailer and load. I've pulled more, weighing 11000 pounds across the scale once. 9900 pounds GCW is comfortable, I wouldn't want to climb mountains with that load.
I figure with a typical 5 liter engine you want the produce of the first gear ratio and the rear axle ratio to be at least 16, but 20 is better. I had a '86 F150 with a 6.5:1 first gear and a 3.50 rear axle and it towed well, but needed an overdrive for the 5L engine.
I had a '65 F350 with a 390, a 7.5:1 first gear and a 5.13 rear axle from a bigger truck and I never did find its towing limit. Probably limited by traction and not enough weight on the duals. With traction, probably 20,000 pounds.
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 Implements and Their Use - by Curtis Von Fange. Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he reached his early sixties
... [Read Article]
Latest Ad:
For sale Farmall super A tractor is complete and has just been setting for awhile,it was running when pulled out of the barn,shouldn’t take to much to get it going asking 1100.00
[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.
