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Old 09-14-2021, 04:59 PM   #1
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Allison 3000 Filter size...

'02 Winnebago Journey DL

Electronic shift pad, likely Allison 3000, 6-speed tranni.

Does anyone have the p/n for the tranni filters? I'm planning on changing to Allison Transynd ATF and there's almost 100K on the odometer so need to change the filters too. But having trouble finding out just what size. I can't find the Model/Serial number label on the side of the case and it's a tight squeeze under there too. They could be 6" but they could also be 4". Hard to tell when there's no guidance given of where on the case to measure. The numerous books I have are a bit underwhelming with specific info.

The book says I need 17.5 qts of ATF but the internet says for the Allison 3000 that I need 28 qts. What?

So does anyone with the '02 Journey DL have the p/n's written down for the filter kit and know for sure how much ATF is needed?

THANKS!
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Old 09-14-2021, 05:19 PM   #2
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Here's info on filters for the shallow and deep sump Allison 3000/4000

EDIT : Sorry Jim , wrong document . BRB

RE-EDIT ; OK here's the document .
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Old 09-14-2021, 05:27 PM   #3
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For ease of identification here's pictures of the two sumps .

3000 with deep sump is RARE.
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Old 09-14-2021, 05:40 PM   #4
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Thanks! That's the info that I was missing.
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Old 09-15-2021, 06:56 AM   #5
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I understand Transyn 668 is the newest in 2021.
https://www.allisontransmission.com/...highway-fluids
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Old 09-15-2021, 10:35 AM   #6
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It's not a hard job but that Transyn is not cheap....
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Old 09-15-2021, 10:43 AM   #7
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I'm thinking of hiring the next door auto mechanic to do it for me. Doesn't look fun at all.
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Old 09-15-2021, 12:05 PM   #8
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Quote:
Originally Posted by Skip426 View Post
For ease of identification here's pictures of the two sumps .

3000 with deep sump is RARE.
Hmmm....my 3000MH Allison has the deep sump (6" filters) and from when I did research most all motorhome 3000's are deep sump. Hmmmm
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Old 09-15-2021, 12:07 PM   #9
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Quote:
Originally Posted by Jim_HiTek View Post
I'm thinking of hiring the next door auto mechanic to do it for me. Doesn't look fun at all.
It isn't so hard. There is a pinned document in the Allison forum that a nice guy wrote up. Having a large drain pain (19qt) is necessary, and a 3/8" drive torque wrench.
My trans had 130K so I just changed my filters and fluid. Took about an hour including fill from a 5gal bucket I ordered off of Amazon.
I found these filters on eBay for a good price Allison 3000 filters

And purchased this synthetic ATF: Allison Approved ATF
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Old 09-15-2021, 01:23 PM   #10
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Thanks for those links. I bit the bullet and retracted my slides, adjusted my jacks so I could wiggle my gut underneath, copied the info off the tranni label and measured the sump.

And found the S/N doesn't do anything for me. Basically leads me to a marketing page for Allisons TES fluids. Grrr.

Anyway, was able to dig out the rest of the info...there's so many options I'll just refer lurkers that stumble on this thread to the link to the PDF above. Very handy.

For my Allison 3000MH tranni, plan is new filters and fluid change to TES synthetic, I found these facts:

Sump - 1 & 3/4" deep, so 2" filter kits needed; 29545776 ordered frm eBay
Fluid - 17.5 qts needed for a refill; will order frm Amazon from the link just above. A full rebuild requires 26 qts but I think that a filter change, drain and fill only requires the 17.5 qts.

Anyone know for sure?

I'm parked on a slope and barely have enough jack height to get level so that makes it difficult to DIY, but I'll see if the neighbor wants to tackle it. I can barely get my belly under there as it is. Since Allison says it needs to be level when doing the work I think I'll have to reverse the position of the RV to make room under there, but then have to worry about the duals being off the ground when I level it so lots of blocking and heavy duty jack stands. Maybe 6X6 ramps? Might just be easier to find a local shop to do it so there'd be no worries. Or at least not as many worries. Or do it in the street. The last truck shop started pouring a gallon of engine oil into the tranni fill tube...which is why I'm getting ready to do this work.
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Old 09-15-2021, 01:37 PM   #11
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Call Allison with your transmission serial number (driver's side of transmission to verify which filter pack your transmission takes.


Your Allison dealer can also look it up when using that info when you buy the filter kit and TES 668.


Not a difficult job. Instructions are in the filter kit from Allison. Even an "occasional shade tree mechanic" can do it. Do NOT over-torque the filter bolts. Best to use a torque wrench and stick with the minimum torque value on the instructions.
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Old 09-15-2021, 02:45 PM   #12
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I just changed my filters, hot a bad job. I caught the ~2 quarts of oil in a paint tray that I put in a white garbage bag, that way I can visually look at the oil. Measured the oil so I could add back the same amount. Installed the 2 filters, I used ~40 ft-lbs of torque. Added 2 quarts back in then took it for a drive to get it up to temp and then check the oil level via the touch pad. All good.


In my notes when I changed filter and oil I added back 18 quarts. I think the rest is trapped in torque converter.
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Old 09-15-2021, 02:47 PM   #13
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Yes, least expensive is a PAIL of TES668. That will leave you a quart or so left over.
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Old 09-15-2021, 03:04 PM   #14
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My 3000 had 6" filters and they had the installation date written on them with a sharpie.
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