How much HP can a Ford 9 handle?
“They’re good only to 400hp max,” says Tom at Tom’s Differentials. “Anything above that should use today’s beefed-up, redesigned, nodular-iron aftermarket cases. They’re good to 800 hp, if built properly.
What gear ratios are available for a 9 inch Ford?
Choice of Gear Ratios: 2.50*, 2.75*, 3.00, 3.25, 3.50, 3.70, 3.89, 4.11, 4.30, 4.56, 4.71, 4.86, 5.00, 5.14, 5.29, 5.43, 5.67, 5.83, 6.00, 6.20, 6.33, 6.50 NOTE: 2.50 and 2.75 are take out gears.
What is so good about a Ford 9-inch?
The Ford 9-inch is desirable because it has a removable carrier, which allows quick rear end changes. Many racers carry an extra carrier assembly with a different rear end ratio so they can try different combinations on the same day while at the track.
What is a Ford 9-inch spool?
A Ford 9 inch spool is one solid part that replaces all components of a differential. It will always turn both axles at the same speed with an equal amount of force. Due to the simplistic design, it is much stronger and lighter than any differential.
How much horsepower can a 28 spline Ford 9 inch handle?
Your 28 spline axles will easily hold up to 500 ponies or so.
What’s the best rear end for drag racing?
Ford 9″- The Ford 9″ is definitely the most popular of the rear ends in drag racing. It offers good strength characteristics and the largest variety of gear choices. The thirdmember type center section allows a racer to have multiple gear ratios available and is much easier to change than a rear loading type rear end.
Why is it called a 9 inch rear end?
The Ford 9 inch rear end (named after the outside diameter of its ring gear) was intended to serve as the backbone for the brand’s full-size sedans and trucks starting at the end of the 1950s.
Why is it called a Ford 9-inch?
The Ford 9-inch rear end, so named because of its 9-inch ring gear diameter, was manufactured from 1957 to 1987 by the Ford Motor Company and installed in some intermediate and most full-size Ford, Lincoln, and Mercury passenger cars, F-Series ½-ton trucks, and Econoline vans.
What is the difference between a mini spool and full spool?
Mini spools are designed to be installed in an existing open differential and are used to replace the side gears and spider gears. They also lock both axles in place so that they both put power to the ground with equal torque and traction. Many weekend racers use mini spools as a lower-cost alternative to a full spool.