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  1. Replies
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    Re: How to Modify A413 for More Power

    The real way to adjust is to put line pressure gauge on and measure. BTW it is a 1/16" male pipe thread you need. Not super easy to find. Those pressure measurements are in FSM. I know what your...
  2. Replies
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    11,388

    Re: How to Modify A413 for More Power

    Here is a photo or two of the tranny pan drain bolt/location and the external line adjustment location. 1/8" NPT is all that is needed. Sorry about the blurry photo.
  3. Replies
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    11,388

    Re: How to Modify A413 for More Power

    Nice write up. :thumb:Are you going to drill and tap the case for external line pressure adjustment? Another suggestion for tutorial thread is drill and weld in a nut in pan for super easy tranny...
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