Ford 9 Inch Ring And Pinion Setup Videos

This type of ratio is referred to as non hunting because any given pinion tooth always contacts the same three ring gear teeth per revolution. Torque down all the parts and do another pattern check. Ring and pinion 4 57 1 ratio ford 9 in set not yet reviewed.

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The ratio of a set of gears depends on the range of teeth that the pinion has in relation to the ring gear.

Ford 9 inch ring and pinion setup videos. Here s a couple videos to go along with your notes. We shot this at strange engineering a couple years ago as they set up a 9 with a camaro housing. Ford 9 ring pinion swap install an amateurs guide. That s what you should know about ford 9 inch gear ratios chart.

If old pinion was 2 and new pinion is 1 you will need to subtract 003 inches from the original shim. Once pinion depth has been set a final backlash setting can be achieved by adjusting the location of the differential and ring gear. There are also a number of strategies to manually correct the relationship even if you can not find the amount of teeth in the ring gear or pinion. For this endeavor we ll be installing a ford 9 inch rearend that has been outfitted with a 11 inch drum brake kit with e brake and 28 spline axle assemblies from currie enterprises as well as.

The build is in the last video the first one is a strange shop tour. Add or subtract pinion shims in thousands 001 of an inch. Axle model and get free shipping on orders over 99 at summit racing. See all items in this department.

Then perform a pattern check. Find ring and pinion gears with ford 9 in. Start with a nominal pinion shim of about 014 inch. Adding shims on the ring gear s smooth side of the carrier moves the ring gear closer to the pinion causing the teeth to mesh tighter decreasing the amount the backlash.

Install cartridge continued make certain that the cartridge is oriented correctly. To verify the shim is correct the ring and pinion set needs to be installed and torqued in place. The ford 9 inch axle came from the factory with ratios that are whole numbers such as 3 0 1 which was achieved with a 39 tooth ring gear meshing with a 13 tooth pinion gear. This is opposite what you would do on most differentials as pinion shims on a ford 9 inch change pinion depth in the opposite direction compared to most differentials.