TH400 rebuild tech
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You can plug the hole with a brass dowel or a check ball. To use a check ball you will have to first drill the hole larger and then drive the check ball in place. | You can plug the hole with a brass dowel or a check ball. To use a check ball you will have to first drill the hole larger and then drive the check ball in place. | ||
| − | Drill the marked holes at 0.125" (1/8") for street use. At the 1-2 shift hole, drill out the small hole. | + | Drill the marked holes at 0.125" (1/8") for street use. At the 1-2 shift hole location, drill out the small hole. |
For a heavy duty application : 3rd gear shift use 0.150" (# 25 bit, 0.1495") drill and leave the 1-2 check ball out. Caution a 34 element sprag needs to used with the 1-2 check ball removed. | For a heavy duty application : 3rd gear shift use 0.150" (# 25 bit, 0.1495") drill and leave the 1-2 check ball out. Caution a 34 element sprag needs to used with the 1-2 check ball removed. | ||
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