Posted by awhtx on January 17, 2012 at 08:04:03 from (71.97.114.73):
In Reply to: Ford f-450 good bad posted by farmer boy on January 17, 2012 at 06:52:54:
I believe your truck is called a F-Super Duty. It was sold as a Cab & Chassis only so Ford did not call it a F-450. I have an 89 F-Super Duty with the 7.3 and 5 speed ZF. It has 5.13 gears in the rear axle so it"s no speed demon but it will pull anything you can hook to it. It is a Dana 80 axle and gears are available all the way down to 3.31 or so if you want speed without revving the engine.
The 7.3 is nothing but a 6.9 with the cylinders bored .110" over size. This leaves very thin cylinder walls that are especially prone to pinhole leaks due to cavitation. Check the SCA level of the coolant to see if it has the special anti-cavitation additive in it. Mine has 4 wheel disc brakes with a hydraboost (instead of vacuum) power system. The front axle is a solid I beam with nothing weak about it. It rides like a buckboard wagon.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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