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Thread: transmission issue troubleshooting

  1. #76
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    The 1/2 shift was pure sex. The internals were brutal the first time around. The 2nd time it was immaculate.
    "If you don't have constructive feedback, then feed your feedback back up your backside" Author Unknown
    94 GMC T15 Jimmy 4.3CPI 4l60e lots of mods, retail value about 1500 bucks

  2. #77
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    but 2nd time u were missing parts correct?

  3. #78
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    Yeah the first rebuild sucked with no 3 and 4. This time around I found 2 missing parts and the clutch clearances were way out of whack.
    2 concerns on this build:

    I have no tools to measure the selective washer that goes on the input drum so im using what it came with.

    The accumulator springs and piston positioning are confusing. Im going back with what it had but im worried they are wrong. With that said, if it turns out they are wront i can always drop the pan and cprrect the issue.
    "If you don't have constructive feedback, then feed your feedback back up your backside" Author Unknown
    94 GMC T15 Jimmy 4.3CPI 4l60e lots of mods, retail value about 1500 bucks

  4. #79
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    4th gear accumulator people swap for some reason i understand the theory just don't think necessary the trans go kit tells you to do it put the spring in 1st then piston

  5. #80
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    again i feel for clearances the pistons have a pretty good travel I mean missing a clutch plate yea no good but I think your over thinking it Ive been building 4l60e - 700r4 since I was 13

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  7. #82
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    I know there are tolerances I just want to have it last as long as possible.
    "If you don't have constructive feedback, then feed your feedback back up your backside" Author Unknown
    94 GMC T15 Jimmy 4.3CPI 4l60e lots of mods, retail value about 1500 bucks

  8. #83
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    i know look at video i think those are the springs you talking about did you change out all the plastic pistons just to show you how there put in any questions upload pic

  9. #84
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    Yeah I always trash plastic pistons. Have about 10 aluminum ones with varying pin sizes I've either bought new or extracted from good cores. I think the scotch brite pad for hitting parts is a great idea too.
    "If you don't have constructive feedback, then feed your feedback back up your backside" Author Unknown
    94 GMC T15 Jimmy 4.3CPI 4l60e lots of mods, retail value about 1500 bucks

  10. #85
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    the steals always you want bite

  11. #86
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    Interrupting a bit here....

    Awhile ago I reported a lack of engine braking on my 4L60E - brand new from Finish Line Transmissions.

    As a followup, I sent it back to the shop and they found that there was a problem (as suspected) with the overrun clutch hub (?) - some sort of a "leak" in the circuit I believe due to a bad seal.

    They fixed it quick and shipped it back. I just got it in but haven't taken it for a ride yet... so I probably jinxed everything- but I am expecting it to be fixed now. :)

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