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6.0 GenIII engine with 4L80E auto?


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ok Im just tryin to track down what went wrong with my personal swap. Note to all doing a 6.0 swap lol make sure there is no spacer between flywheel and engine if going with 60or65e tranny.

 

The 4L60Es used behind the Gen III motors (except early 6.0L) uses a different converter alignment hub than the older style motors due to the difference in the crankshafts protusion from the block.

The Gen III motors crank is near flush with the back of the block, where older designs it protruded from the block more.

The 4L60E applications used a flexplate that was "bell" shaped instead of flat. The 4L80E applications (since the bellhousing was still integral to the case) used a flat flexplate but with a spacer to space it back to the old style position. This spacer also acts as a locator to index the converter to the crankshaft centerline.

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