TH350 rebuild tech
(Created page with '{{youcanedit}} Will be posting pictures and instructions of an actual TH350 rebuild for hi-performance use. I do not intend for this to be a replacement for a tech manual. Firs…') |
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Be sure you have the output ring gear to case bearing in the case. | Be sure you have the output ring gear to case bearing in the case. | ||
Also be sure on disassembly you inspected and replaced as necessary the input shaft to output bushing shown here | Also be sure on disassembly you inspected and replaced as necessary the input shaft to output bushing shown here | ||
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| + | Next goes in the output planet to output ring gear bearing or thrust washer depending on year. | ||
| + | Then the planet. | ||
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| + | Now you can install the low/reverse clutches, beginning with a steel, then a friction, alternating, ending with a friction. | ||
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| + | Note here, | ||
| + | If you have a light duty core with low count low pack, unless it is a transbrake application or will be manually shifted into low for engine braking often, fewer clutches is OK, in some cases, where you are after every lat ounce of ET, using fewer clutches can cause less frictional loss in 2nd and high gear. "Turbulator" steel plates from a 4L60E will also help and are a direct drop-in. | ||
| + | I am using Alto red frictions in this unit, however a stock tan clutch (I prefer Borg Warner) is more than adequate for even very high HP cars. A Hi-Energy Borg from a 4L60E is also a good choice. | ||
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| + | Once the low clutches are installed, you can install the anti-clunk spring (or case-saver). Both are pictured, the case-saver is solid and spreads the load over a larger area. Hold in place with assembly gel or vaseline and then install the low support. | ||
| + | Be sure the low sprag inner race is not brinelled or has any unusual wear. | ||
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| + | Once it is pushed into place, install the snap ring, with the ends on each side of the spring or case-saver. | ||
| + | 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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