TH700R4 through 4L70E tips and tricks
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The 3-4 clutch pack in these transmissions have been a problem area since production release in 1981. | The 3-4 clutch pack in these transmissions have been a problem area since production release in 1981. | ||
| − | Various 3-4 clutch pack kits are offered. '''Z-Pak''' from '''Raybestos''' is a high energy material single sided friction plates , '''ALTO''' offers a kit with single sided red friction material friction plates. | + | Various 3-4 clutch pack kits are offered. '''Z-Pak''' from '''Raybestos''' is a high energy material single sided friction plates , '''ALTO''' offers a kit with single sided red friction material friction plates. |
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| + | *Boost valves; | ||
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| + | In a 700r4 - 4L60 non electronic trans, you will want a .470 to .500 main boost valve. The low-reverse boost valve a .282 or .296 works well. On the low-reverse boost valve measure the long valve land for size. | ||
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| + | In a pre-1987 700r4 - 4L60 trans a larger low-reverse boost valve will hold off the auto upshift to 2nd gear while the shifter is in manual 1st gear | ||
[[Category:Transmission]] | [[Category:Transmission]] | ||
[[Category:Good articles]] | [[Category:Good articles]] | ||
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== Reference and reading Material == | == Reference and reading Material == | ||
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