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Old 01-19-2006, 11:09 PM   #11
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Ok, maybe this will help. Rebuild the Diff from scratch. For info, the 2 primary modes of failure for the 4T60E(HD) trans under the Series 1 L67'* is either the shaft of pin.

Look at this pic:

See that vertical shaft on the far right? It holds the two little planetary gears in the 'cage' or housing. See that little pin perpendicular to it? That'* the pin that holds that shaft in the cage.

The shaft can break, allowing the 'unrestrained' (unpinned) half to come free, or the pin can break, allowing the whole shaft to come free.

That'* what happens in a nutshell. Keep the cage (never seen one fail, although mine is new), and replace ALL other parts you see in that pic above. I have most of them in a box here from my last failure.
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Old 01-19-2006, 11:11 PM   #12
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Quote:
Originally Posted by willwren
Ok, maybe this will help. Rebuild the Diff from scratch. For info, the 2 primary modes of failure for the 4T60E(HD) trans under the Series 1 L67'* is either the shaft of pin.

Look at this pic:
<image removed for scroll, look above>
See that vertical shaft on the far right? It holds the two little planetary gears in the 'cage' or housing. See that little pin perpendicular to it? That'* the pin that holds that shaft in the cage.

The shaft can break, allowing the 'unrestrained' (unpinned) half to come free, or the pin can break, allowing the whole shaft to come free.

That'* what happens in a nutshell. Keep the cage (never seen one fail, although mine is new), and replace ALL other parts you see in that pic above. I have most of them in a box here from my last failure.
Thanks Bill. I think I get it now. Basically rebuild the entire diff, but keep the cage (unless it shows wear for some reason). I'm going to bring printouts of these posts with me when I sit down with my mechanic.
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Old 01-19-2006, 11:14 PM   #13
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Your trans builder will know EXACTLY what we're talking about. Much of this is likely to be old news to him.

L67'* are brutal on the Diff. That'* the key to keep in mind. 2nd gear clutches are the next thing most likely to fail. Heat is the 3rd enemy. Sounds like your plan so far will fix all 3.
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Old 01-19-2006, 11:16 PM   #14
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Quote:
Originally Posted by willwren
Your trans builder will know EXACTLY what we're talking about. Much of this is likely to be old news to him.

L67'* are brutal on the Diff. That'* the key to keep in mind. 2nd gear clutches are the next thing most likely to fail. Heat is the 3rd enemy. Sounds like your plan so far will fix all 3.
Yeah, Dave knows all about this.. I just want to sound intelligent when I go in. I can't wait to get this done! I read over your posts (again) on how well your car shifted and felt when you were done.
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Old 01-19-2006, 11:20 PM   #15
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It got better. Funny sounding as it is, but it did. Waiting to see if Matt'* does too.
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Old 01-19-2006, 11:35 PM   #16
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Quote:
Originally Posted by willwren
It got better. Funny sounding as it is, but it did. Waiting to see if Matt'* does too.
I know this is gonna end up costing more then I paid for the car, but I don't care.. I am -SO- excited! Meeting with Dave on Monday to talk details.
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Old 01-20-2006, 09:19 AM   #17
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Go Morty...
When is the actual work starting?
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Old 01-20-2006, 10:46 AM   #18
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Go Morty...
When is the actual work starting?
Gonna sit down with him on Monday. Either this week or next depending on his schedule.

Being family, I'm basically paying for parts and any labor if he involves other people at his shop, plus a couple of 18 packs.
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Old 01-20-2006, 10:56 AM   #19
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When and if...I'll let you "borrow" my car for a couple weeks
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Old 01-20-2006, 11:00 AM   #20
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Quote:
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When and if...I'll let you "borrow" my car for a couple weeks
give him Geoff'* lumina...I'll take the 97....and since I currently hold the keys to the lumina
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