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change fluid allison tranny

2006 2500hd duramax/allison tranny fluid service

change fluid allison tranny

Postby duramax66 [OP] » May 04 2011, 8:13am

I would like to know the procedure for changing the fluid and filter on my 2006 2500hd duramax/allison tranny. Is it as simple as engine oil with the spin on filter, or is there more to it?
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Re: change fluid allison tranny

Postby szyg6h » May 06 2011, 5:18am

I'd go to Pacific Power Products in Spokane, get the Allison TranSynd fluid (synthetic) and filter- all genuine. Talk to them about diy, or them do it. get as much changed as possible- they'll have the technique.
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Re: change fluid allison tranny

Postby Z15 » May 06 2011, 9:33am

fyi

faqs from Allison
Q. Filters - How many filters are there and when do they need to be changed?
A. The Allison 1000 Series™ uses two filters to maintain cleanliness of the Automatic Transmission Fluid (ATF). There is a 'spin-on' filter that is externally accessible and is intended to be changed at each ATF change (see owners manual for recommended change intervals). Current P/N for this filter is 29539579. Because this is a relatively 'high pressure' spin-on filter, it is important to tighten the filter one full turn after the gasket contacts the transmission case. Also, there is a removable magnet between the filter and the transmission housing; care needs to be taken that the magnet doesn't get 'thrown away' with the old filter if it happens to stick to the old filter. Beginning with MY03, GM Truck is recommending that the spin-on filter (filter only; not transmission fluid) initially be changed at 7,500 miles. Following that, the filter and fluid should be changed at the recommended intervals.

The other filter is inside the transmission oil pan, and is intended to be changed only in the event of an overhaul.


The TranSynd is geared more toward the commercial line of transmissions and is a Dexron III ATF. Check the owners manual to be sure you can use a Dexron III, it might require Dexron VI and in that case you should not use TRANSYND. Keep in mind that while Allison makes the transmission, GM warranties it and sets to maintenance procedures.

Look up specifications like this here
2006 CHEVROLET TRUCKS SILVERADO 2500 HD PICKUP 6.6L 8-cyl Engine Code [D] LBZ Turbo Diesel
CAPACITIES:
Engine, with filter..........10.1 quarts [1]
Cooling System, With AT Initial Fill..........25.4 quarts
Cooling System, With MT Initial Fill..........25 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, 4L80-E Initial Fill..........7.8 quarts
Automatic Transmission, 1000 Initial Fill..........7.4 quarts [2]
Automatic Transmission, Total Fill
4 speed 4L80-E..........13.6 quarts
6 speed 1000..........12.7 quarts
Manual Transmission, ZF S6-650..........12.7 pints
Manual Transmission, NV4500 (TOPC)..........8.1 pints
Differential, With 8.25 RingGear Front..........3 pints
Differential, With 9.25 RingGear Front..........3.6 pints
Differential, With 10.50 RingGear Rear..........5.5 pints
Differential, With 11.50 RingGear Rear..........6.4 pints
Differential, With 8.6 RingGear Rear..........4.3 pints
Differential, With 9.50 RingGear Rear..........5.5 pints
Differential, With 9.75 RingGear Rear..........6 pints
Transfer Case, NVG 149-NP3..........4.5 pints
Transfer Case, NVG 246-NP8..........4.1 pints
Transfer Case, NVG 261-NP2..........4.1 pints
Transfer Case, NVG 263-NP1..........4.1 pints
[1] After refill check oil level.
[2] DO NOT drain the fluid if only the transmission spin-on oil
filter is being replaced.
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