TH350 rebuild tech
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'''Note here:''' | '''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 last bit 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. | 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 last bit 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. | ||
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| + | There are Alto red frictions in this unit, however a stock tan clutch ( like Borg Warner brand) is more than adequate for even very high HP cars. A Hi-Energy Borg from a 4L60E is also a good choice. | ||
| − | Once the low clutches are installed, you can install the anti-clunk spring (or case-saver) | + | |
| + | Once the low clutches are installed, you can install the anti-clunk spring (or case-saver). Hold in place with assembly gel or vaseline and then install the low / reverse support. | ||
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. | ||
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[[file:T-350_center_support.jpg|frame|none|Center support, inner race, thrust washer shown.]] | [[file:T-350_center_support.jpg|frame|none|Center support, inner race, thrust washer shown.]] | ||
| − | 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 | + | 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|frame|none|Double bushings installed. You MUST drill oil holes in bushings.]] | [[file:T-350_sun_gear_bush.jpg|frame|none|Double bushings installed. You MUST drill oil holes in bushings.]] | ||
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