TH350 rebuild tech
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Next goes in the output planetary to output ring gear bearing or thrust washer (depending on year). | Next goes in the output planetary to output ring gear bearing or thrust washer (depending on year). | ||
| − | Then the planetary unit. Replace the bushing in this planet. | + | Then the planetary unit. Replace the bushing in this planet.Check planet pinion gears for side to side movement. Clearance of .030 to 0.050 is common. If the pinion gears wiggle like the bearings and pin are worn, replace the planet with a rebuild or good used. |
| − | [[ | + | |
| + | [[File:T-350_rear_planet.jpg|thumb|300px|left|T-350 rear planetary unit with fresh busing installed]] <br style="clear:both"/> | ||
Now you can install the low/reverse clutches, beginning with a steel, then a friction, alternating, ending with a friction. | Now you can install the low/reverse clutches, beginning with a steel, then a friction, alternating, ending with a friction. | ||
| − | [[ | + | |
| + | [[File:T-350_low_clutch_install.jpg|thumb|300px|left|T-350 low - reverse frictions and steels installed with planetary and output shaft]] <br style="clear:both"/> | ||
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Be sure the low sprag inner race is not brinelled or has any unusual wear. | Be sure the low sprag inner race is not brinelled or has any unusual wear. | ||
| − | [[ | + | |
| + | [[File:T-350_center_suport_sprag.jpg|thumb|300px|left|Photo shows center support with sprag and inner race.]] <br style="clear:both"/> | ||
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Now is the time to air check the low clutches. You do so by applying pressurized air to the passage at the rear pan area of the worm casting in the case. | Now is the time to air check the low clutches. You do so by applying pressurized air to the passage at the rear pan area of the worm casting in the case. | ||
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| − | [[ | + | [[File:T-350_anti-rattle_spring.jpg|thumb|300px|left|Anti rattle (clunk) spring shown in correct location; use assembly grease to hold in place.]] <br style="clear:both"/> |
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| + | [[File:T-350_center_support.jpg|thumb|300px|left|Center support, inner race, thrust washer shown.]] <br style="clear:both"/> | ||
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Next you install the 4-tang thrust washer into the large splines of the low sprag inner race (picture above), and then the sun shell and gear assembly. Before this step, for HD use, you would have wanted to install additional sun gear bushings, there will be 2 bushings on each end, and re-drill the lube holes as shown below. | Next you install the 4-tang thrust washer into the large splines of the low sprag inner race (picture above), and then the sun shell and gear assembly. Before this step, for HD use, you would have wanted to install additional sun gear bushings, there will be 2 bushings on each end, and re-drill the lube holes as shown below. | ||
| − | [[ | + | |
| + | [[File:T-350_sun_gear_bush.jpg|thumb|300px|left|Double bushings installed. You MUST drill oil holes in bushings]] <br style="clear:both"/> | ||
==Install drive shell and front planetary unit== | ==Install drive shell and front planetary unit== | ||
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