Initial Filter Change

[Route 66]

In June or July of 2006, Allison introduced a High Capacity filter for the 3000 and 4000 MH transmissions, replacing the Gold series filters.

Transmissions with serial number higher than the ones listed no longer need the 5000 mile service.

Quote:

3000 and 4000 Product Families Transmissions Elimination of Initial Filter Change Requirement and Kit: Beginning with S/N 6510670912, S/N 6610205144, S/N 6520067342,and S/N 6620002521 transmissions equipped with Allison high-capacity filter do not require an initial main filter change at 5000 miles/8000 km/200 hours. However, serial numbers prior to those numbers listed above, Allison Transmission requires the initial filter change interval. An initial main filter kit (2 inch kit P/N 29540495 or 4 inch kit P/N 29540496) contains only one Gold series filter and all necessary seals and gaskets to perform the first 5000 mile/8000 km/200 hour main filter change. These kits have been completely cancelled. Once stock has been depleted, it will be necessary to order the high-capacity filter from the Allison Parts Distribution Center.

HERE is a link to the Allison web site with additional info, and info on other transmission models.

[AKBrick]

Awwwwww nuts! I missed the cut on not having to get an initial filter change serial number by 20,000! I'm comming up on that in 1000 miles. Oh well, what another dollar or....?
AKBrick

[Gaetan Lavoie]

I just bought the two filters (main & lub)for the transmission MT3000 and I am about to do the main filter change. Having read the Allison instructions, it does not appear to be a difficult task. However, I did not get the two seals and the gasket. I assume that you are supposed to use the old ones. I would feel more confortable if someone who has done the main filter change could confirm this or advise me to get new seals and gasket.

Always appreciate your help.

[wagonmaster2]

Where did you get a filter set without the gaskets and seals? I've changed mine three times, twice with the Gold Series and last with the newer High Efficiency filters, and they always come as a set with all gaskets and seals necessary for the change. Never saw the gaskets listed any place by themselves.
Wagonmaster2

[Gaetan Lavoie]

I wish to report that I changed the filter. The kit contained two High Capacity Filters as well as all the required o rings and gaskets - P/N 29545779. It is a very easy task. The first thing to do is to determine which transmission covers to remove. It is easy because they are identified as MAIN and LUBE on the bottom transmission pan. The one to be removed is the main filter. All you need to do is unscrewing six long bolts and prying the cover off. There is not that much oil that will be dripping down - approx 1 quart. Remove any parts of the gasket material from the pan and the cover, remove the filter from the cover, remove the two o rings, clean the cover, oil the two new o rings and install them, oil the o ring inside the filter, assemble the filter and the cover together by turning and pushing, place the gasket on the cover and insert this assy into the transmission and screw in the six bolts to a torque of 38 to 45 lb ft not more otherwise you may tear the treads inside the aluminium transmission housing). Start the engine, let it warm up, move the transmission selector through all gears, and leave it in neutral with the engine running at idle. You will need to add close to two quarts of Transynd oil to bring it up to the proper level. You should be all done in less than 30 minutes.

I should say that since you only need one filter, you can share the other identical filter with one of your buddy just like the oil which is not sold in quantity less than 1 gal.

[RLS]

Gaetan, Is that 38 to 45 IN LBS or FT LBS?

[Gaetan Lavoie]

Bob,

Torque all filter cover retaining bolts to 51-61 N"¢m (38-45 lb ft) as per Allison Service Tip #1099H.

Sorry about the late reply.

[Finhawk]

Ok, good! So where is the SN on these things??

[Finhawk]

Never mind, I found it!