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Extending 4l60e case.

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Old Jul 30, 2018 | 09:30 PM
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Default Extending 4l60e case.

With the 3-4 packs being so fragile any thoughts on extending the case and input drum enough to double the clutch packs and make them beefier?
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Old Jul 30, 2018 | 09:46 PM
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It'll never happen.
One reason is that the 3-4 clutch can be made durable enough to expose the next weakness in this transmission.
By the time all the weak areas are upgraded you end up with a transmission that costs about as much as something like a 4L80E that's hardly upgraded yet just as durable.
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Old Jul 31, 2018 | 12:01 AM
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Also if you extend the input drum you would change the position of the reverse input drum which would not work with the current band anchor location which means you would have to cut the case perfectly in half, figure out the case side of the valve body and also do the same extending of the valve body which is just not a option.
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Old Jul 31, 2018 | 08:39 AM
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When you can make stock input drums hold the power, then also have things like the sonnax drum and the 4l79 drum...why would extending the case be the first choice?
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Old Jul 31, 2018 | 09:20 AM
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I have found the input sprag and overrun clutch hub to be the weak link.
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