Thread: Tranny question, sun gear shaft

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  1. #1 Tranny question, sun gear shaft 
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    Tried posting this once with tapatalk and it crashed.

    Long story short. 4t65ehd, forward band broke. Didn't pull tranny dong it in car. An idiot i had in the garage pulled the final drive sun gear shaft, not sure how he mustive broke the c clip.

    What are the chances of getting it to seat properly without pulling the diff?

    I have lots of pics can't upload them, and photobuckets g9ving me issues.
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  2. #2 Re: Tranny question, sun gear shaft 
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    What sun gear shaft?

    The correct way to put a trans together is to put the diff/sun gear in and install all the other stuff. then you put the uh... kripes I'm forgetting names... main shaft into the trans. One tap and it's in.
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  3. #3 Re: Tranny question, sun gear shaft 
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    Thanks for the reply.

    Didn't need to pull the output shaft (what you're probably thinking) didn't need to touch the diff.

    If I could upload the pics it's easier to understand.

    I'll try to explain with phone and fat fingers.

    This can be done with tranny still in car. Pull everything from driver side, pull dogbones and lower cradle.

    Pulled sidecover, vb, everything down to chain, pulled chain, then started pulling everything oit, inspecting and setting in order each piece. Output shaft doesn't need to be pulled. I pulled everything down to forward band, which was broke,

    The manual calls this piece the final drive sun gear shaft, it shouldn't even come out without the diff off as the manual shows and clip that holds it in.

    I had an idiot in my garage that not only screwed with the parts and got them out of order forcing me to waste hours and money on the tech manual to figure it out (I do everything but trannys hate them, first time diving into it and will be the last, I see why labor is expensive)

    While I wasn't paying attention somehow he forced it out, I've got it back in, it's in there where it moves out about a quarter inch then stops unless you use force to pull.

    Like I said it's better with pictures to show how far it's in and what it looks Like, but I can't upload them, to big.

    Manual shows this shaft being worked on and coming out the diff side so I'm assuming I can reassemble everything and worry about the clip later? The shaft is not flush with the tube inside there

    Having this shaft pulled has got me in a very bad mood, people know not to touch my stuff or what I'm working on and this is why.
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  4. #4 Re: Tranny question, sun gear shaft 
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    Jump in the chatbox Ask Scottydoggs for the link to the dropbox In it is the rebuilt manual for the transmission. I think that's about all you need

    But then you say you have the manual.


    Can't quite think of which clip you are talking about. Do you have a pic?
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  5. #5 Re: Tranny question, sun gear shaft 
    Killa Bee Scottydoggs's Avatar
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    drop bon is a sticky in the tuning section.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #6 Re: Tranny question, sun gear shaft 
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    ty spuge
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  7. #7 Re: Tranny question, sun gear shaft 
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    Here's a pic of the manual, you have the shaft 689 in the right figire, the bottom left figure you have the clip 512.

    Still not sure how it was pulled out like it was, I'm thinking the idiot broke the clip
    Tranny question, sun gear shaft Attached Images
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  8. #8 Re: Tranny question, sun gear shaft 
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    Here's what it looks like, don't think it's in all the way as I can't get the oil dam over it.
    Tranny question, sun gear shaft Attached Images
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  9. #9 Re: Tranny question, sun gear shaft 
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    The clip 512 is on the output shaft. There is no clip on the sun gear shaft. I believe the sungear shaft has 2 flat spots on it though that need to line up with spots on the diff gear. If you pull the differential you can get to the gear and shaft from that side. Also need to ensure the park gear and bearing are all still aligned on the shaft as well.
    Billet 6262 T3 turbo, PT1001 intercooler, ST1 cam, 140 springs, pushrods, N* TB, L26 upper, HV3, otherwise stock L32. 10.007 @ 135.54with 1.46 60' 3130 lbs

    Old GenV M90, XP, heads, N* TB, ST2 intercooler - 11.425@115.60 1.54 60'
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  10. #10 Re: Tranny question, sun gear shaft 
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    You should not have the output shaft in at this point. It's the last step to assembling a transmission. Grab the manual from the dropbox because it gives you step by step.
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