Transmission part. What is it & where does it go.
#1
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Transmission part. What is it & where does it go.
91 Z28 700R4. Transmission disassembly. Transmission on side upside down. When I pulled out the low/reverse clutch assembly I heard it fall and it was laying right in front of the low/reverse piston. It is slightly concave, (running up & down) at this view. Only one shiny mark on it as seen. I have looked at every diagram I can find but none of them show this part neither does any utube I looked at. Any ideas??? Do I need it? If so how is it positioned?
#2
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Re: Transmission part. What is it & where does it go.
Has anyone ever seen a part like this? Any info at all would be helpful & appreciated. Thanks
#4
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Re: Transmission part. What is it & where does it go.
That sounded like it so I googled "case saver" THAT'S IT. Thank you so much. No just to figure out how it's positioned. I will be talking to Pro Built in a week or so and will ask him about it and about the anti clunk spring. Thanks again.
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BBCSwap (09-15-2023)
#6
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Re: Transmission part. What is it & where does it go.
I found where it goes. There's a mark on the case. It lays right in there just as nice as can be. Thanks again.
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Re: Transmission part. What is it & where does it go.
This is one of three different versions of what is called a "case saver". This takes the place of the "anti clunk" spring. This should only be used when the aluminum case lugs are very worn.
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vorteciroc (09-19-2023)
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Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: Transmission part. What is it & where does it go.
Post an Image of the Empty Case, so we can see the Case Lugs.
-If the Lugs are Bad, time for a new case.
-If the Lugs are good, time to find an Original Anti-Clunk Spring.
Those Case Savers should only be used as a Temporary "Band-Aid" to keep the Vehicle Going until the next Transmission Rebuild.
-If the Lugs are Bad, time for a new case.
-If the Lugs are good, time to find an Original Anti-Clunk Spring.
Those Case Savers should only be used as a Temporary "Band-Aid" to keep the Vehicle Going until the next Transmission Rebuild.
#9
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Re: Transmission part. What is it & where does it go.
The first pic (right side of case) is the worst by far but I think a file will take out the marks. The left side are light marks. And the bottom is barely noticeable.
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Car: Resto-Mod 1987 IROC-Z Clone
Engine: Alky fed L92 Vortec Twin-Turbo 6.8L
Transmission: My own built/ design 4L80M
Axle/Gears: Custom 12 bolt (4.10:1)
Re: Transmission part. What is it & where does it go.
My eyes are not the greatest... so help me here...
I see some grooving from the Steel-Plates of the Low-Reverse Clutch (Not terrible if I see it correctly).
The "Case-Saver" is for Case Lug Wear and Tear in the area of the Cast-Iron Support with the One-Way Roller-Clutch.
(Look good from what I can see).
I would probably do some clean-up/ smoothing, and Use the OEM Spring.
Let some others look at the Photos too, and share their opinion
I see some grooving from the Steel-Plates of the Low-Reverse Clutch (Not terrible if I see it correctly).
The "Case-Saver" is for Case Lug Wear and Tear in the area of the Cast-Iron Support with the One-Way Roller-Clutch.
(Look good from what I can see).
I would probably do some clean-up/ smoothing, and Use the OEM Spring.
Let some others look at the Photos too, and share their opinion
#11
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Re: Transmission part. What is it & where does it go.
I was hoping you'd say that. I did some filing on areas that needed it and they look pretty good. Like he said, more opinions wanted.
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