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    4L80E rebuild for 1100hp questions

    Ok, so the “wide” 34016-W stator bushing isn’t necessary then and the durabond that came in my kit will be fine. Perfect! I plan on changing out every bushing. Thank you looking over all the pics and for providing options on the forward drum. I’ll probably take the sleeve/machine route. I’ll...
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    4L80E rebuild for 1100hp questions

    This video helped!
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    4L80E rebuild for 1100hp questions

    Is the Sonnax Stator Support Bushing Sonnax 34016-W better than the one that comes in the Durabond 13 piece bushing kit Tk4 ($60) This is after using scotch brite by hand, and also more pics of the pump
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    4L80E rebuild for 1100hp questions

    There is about an 1/8th side to side movement when I put the input shaft into the forward drum. Is this normal? Video of overrun hub here: One set of frictions and steels looks pretty bad. About 3 frictions/steels were stuck together and didn't come apart like the other (direct?) set. I'm...
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    4L80E rebuild for 1100hp questions

    I’ll check these tomorrow morning. Thanks for taking a look! I noticed I could only post 10 pics a reply, hence the multiple replies lol
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    4L80E rebuild for 1100hp questions

    The pictures below showing the screwdriver indicate that when pressing on the screwdriver, the valve does move. Those were the only 2 locations on the pump where there was movement. I'm assuming this is normal function?
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    4L80E rebuild for 1100hp questions

    See anything that should be replaced?
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    4L80E rebuild for 1100hp questions

    Thanks again! I will check the pump gears. Would it be alright for me to take pics of all the hard parts and get your comments on their level of wear? Saw a vid showing the need for a press for the center support bushing. I'll have a machine shop handle that. Good to know that Aftermarket...
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    4L80E rebuild for 1100hp questions

    For the part numbers, I went to: https://www.transpartsonline.com/TRANS_PARTS_FILE/tpcat.php?TransPartsOnline=400&TransPartsType=400 and in the search bar I entered 965, which comes back showing: PISTON, FORWARD / DIRECT CLUTCH (Aluminum / No check ball) 64-UP does not use dished type cushion...
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    4L80E rebuild for 1100hp questions

    Clinebarger, you had mentioned that you like to use an Aluminum TH400 piston in the direct drum along with the TH400 spring retainer when building a 4L80E. So would that retainer part number be U34964 (no check ball) or U349645 (with check ball)? My core is a 2005. You mentioned a fluted Sun...
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    4L80E rebuild for 1100hp questions

    Whoops, o-ring had to be removed. Well, nothing else I can do until I get my tools on Thursday lol
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    4L80E rebuild for 1100hp questions

    Thanks again! I forgot to clarify, Jake is out of cores so I'm sending him mine so that he can use it to make the transbrake. I have it all cleaned and ready to ship. So I'll be ok with the 34002EAF for the teflon seals and lip seals then, or is there a kit that is better quality that you...
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    4L80E rebuild for 1100hp questions

    Kind of got sidetracked on this project due to other priorities but I'm back on it now. Found 2005 4L80E core, and now the rounding up of all the correct tools for this project begins. From what I've read, the kent more tools are not necessary, but one special tool that is critical is the OD...
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    4L80E rebuild for 1100hp questions

    Hi Clinebarger, I've decided to also get the Jakes D3 transbrake. Since I'm using CK's master kit to do the internal dual feed mod, CK's instructions say to use all the check balls except for 2 of them, while Jakes D3 instructions say that only 4 check balls are used total. What would be the...
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    4L80E rebuild for 1100hp questions

    I was looking through CK's parts and I don't believe a Jakes state 5 for example which is rated for 1500hp contains these parts in it, so what are your thoughts on these at my 1200 rwhp power level? CK 91-96 over-run assembly/ over-drive planet assembly - 4L80ECC/BOC-C CK 4L80E Billet...
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