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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1096559
10/18/11 05:47 PM
10/18/11 05:47 PM
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Rio Linda, CA
John_Kunkel Offline
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This has been discussed before; after a previous can/can't discussion I went out to the shop and tried it on a fully assembled 727 on the bench....ain't no friggin way that band was coming out regardless of what some said they had done.

Then it dawned on me, some bands might be different. That's the advantage of having shelves full of parts, a quick check of the new/used flex bands I had showed .080" difference in the thickness of the band anchor ends. (widest was .630", narrowest was .550") Factor in the probable difference in case dimensions and the correct answer is....some can, some can't.

I only had 5-6 bands to compare, maybe there's an even bigger difference when comparing all the various brands.


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Re: 727 kickdown band, change in car? [Re: John_Kunkel] #1096560
10/18/11 11:58 PM
10/18/11 11:58 PM
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Funnny you mention that, I think that is why I had trouble, the original was .580 and almost fell out and the new one was .608 took some doin to get in. One advantage of the trans in the car VS bench might be the guts hanging down opening up that clearance instead of hanging down takeing up the clearance.


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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1096561
10/19/11 01:19 AM
10/19/11 01:19 AM
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HANGING DOWN ? ...?? ...

Re: 727 kickdown band, change in car? [Re: dIc dOc Deity !] #1096562
10/19/11 12:12 PM
10/19/11 12:12 PM
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HotRodDave Offline OP
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I am gonna asume that was not meant to be a crude joke Doc so here is the answer, yes there is clearance in the moveing parts and even with brand ne parts in the trans there is still clearance and it may only be a few thou but it could mean the differance in the band going in or not.


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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1096563
10/19/11 04:44 PM
10/19/11 04:44 PM
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The main obstacle to get around is the front drum and even a loose bushing is only gonna let it hang a few thousandths but that might make the difference.


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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1096564
10/19/11 06:54 PM
10/19/11 06:54 PM
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Dave ...NO JOKE intended. But hanging-down? ... I can remember doing a couple of trans way--back when that had the band come loose and spun-around in the case. It did not RUIN the case ... but it did dig-it-up inside.

Re: 727 kickdown band, change in car? [Re: HotRodDave] #1978367
12/29/15 02:10 AM
12/29/15 02:10 AM
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Amarillo, Texas
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Resurrecting an old, old thread....

My need to do this very thing has arisen.

98 Durango, 5.2L 44re.

Front band anchor cracked and bent. Trans lost 2nd. I have the old band out, but wanted some pointers on wiggling the new one back in.

Do you snake it in up by the drum, or do you snake it around the rotator farther back then wiggle it forward to the drum?

Any input would be appreciated!


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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1978553
12/29/15 02:10 PM
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44re is a 904 right , I thought there was more room in there ?

Did you compare lug thickness between the new and old ?


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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1978567
12/29/15 02:23 PM
12/29/15 02:23 PM
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Yes, a 44re is a 904 based trans.

New band is stuck at fedex because of weather, so I have not been able to compare the two.

If I could have gotten the band past the lip (on top) at the sun shell I think it would have slipped back and came out no prob. Since the adjuster lug was bent and broken, I just pulled it the rest of the way off with some vice grips and then pulled the band out.

It's pretty tight in there up by the drum.

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Re: 727 kickdown band, change in car? [Re: BBR] #1978646
12/29/15 04:01 PM
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The original subject of this thread was the 727. Keep in mind that the 904-based trans has two different width bands, 1.400" wide and 1.600" wide...the RE would have the wider band which extends further forward and makes it harder to remove/install in situ and, again, depends on the thickness of the band at the tang. (original might be thinner than replacement)


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Re: 727 kickdown band, change in car? [Re: HotRodDave] #1979104
12/30/15 01:32 AM
12/30/15 01:32 AM
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Looks like it might be a no-go in a 44re. After A LOT of finagling, I got the band halfway around. However, I cannot get it to go any further.

I think it is hitting something on the case. If I could somehow fish it around the drum it *might* be possible, but my patience for the day is gone.


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Re: 727 kickdown band, change in car? [Re: BBR] #1979145
12/30/15 02:45 AM
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I once did an engine swap in a '68 Mustang and put a 351 Windsor in place of the 302. It had a C4 Automatic that we re-used (after rebuilding it) and one of the old parts we re-used was the 2nd gear band. It broke on the first test drive. Evidently it was a fairly common problem and I was able to remove the broken band and pass a new one around the drum and anchor it in place. That is the only transmission that I know of that would allow that, but I have never had to do that with any other.


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Re: 727 kickdown band, change in car? [Re: BBR] #1979381
12/30/15 04:06 PM
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Originally Posted By BBR
Looks like it might be a no-go in a 44re. After A LOT of finagling, I got the band halfway around. However, I cannot get it to go any further.

I think it is hitting something on the case. If I could somehow fish it around the drum it *might* be possible, but my patience for the day is gone.


Did you try it further back ?

You might be able to wrap a thin sheet of sheet metal over the lugs that stick up past the sun shell so you can slide the band over them ?


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