TH700R4 through 4L70E tips and tricks
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(→Pump Modifications: 3-4 clutch mods) |
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Drain back holes from behind the converter hub seal should be enlarged in some pumps. This is year dependent since GM did enlarge the holes in the late 1980's. The matching hole on the pump cover (stator support) should be enlarged too. | Drain back holes from behind the converter hub seal should be enlarged in some pumps. This is year dependent since GM did enlarge the holes in the late 1980's. The matching hole on the pump cover (stator support) should be enlarged too. | ||
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| + | ===3-4 clutch oil passage=== | ||
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| + | Modification for better 3-4 clutch pack apply on early pumps. The circled hole can be tapped and plugged with a 5/16 inch set screw. GM deleted this hole in later pumps | ||
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| + | [[Image:3-4_hole.jpg]] | ||
== Reference and reading Material == | == Reference and reading Material == | ||
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