Read and reread posts on transmission fluid and filters . Intend to get my non-synthetic ( I think ) fluid changed whilst in Las Vegas at an Allison shop , should I ring ahead and ask them to supply filters or should I go to Napa and purchase before we set off ? Also any idea on latest non synthetic filter kit number
All the Allison filters are the same whether syn or not to the best of my knowledge and I have done it many times with various coach's.
The Allison shop will have them and I would leave it up to them to supply not Napa.
JohnH
I know this is a divided subject but why would you not use Transynd?Most trans failures are heat related,the synthetics cut down on
heat.
Would be shocked if your coach did not come with Transynd from the factory. And, I would use Allison only filters.
+1 on Allison Filters, Brett
I recall 1999 or 2000 as being the year that Allison changed their policy on Transynd in Motorhome applications. Seems to me there was a bulletin from Foretravel in about 2000. I know our U270 did not come with Transynd in 1998 and I recall our running mates (2000, U320) changing over to Transynd in 2001 or 2.
Neal
Edit: FT Bulletin, 8/26/02. "The first 2003 models off the production line will have initial transmission fill with Transynd." It's in Barry's information.
Looking through old invoices from PO I see a fluid and filters change with non synthetic. The dealer was supposed to change all fluid when I purchased coach.
Trying to chase that one .
Only thought is synthetic involves two changes at about $500 per change????
That's something you have to decide for you.
Just read some info on the Allison site dated from 2013,if using transynd for extended drain intervals they now recommend
the hi capacity filters over the gold.Hi capacity number,29548988.That's how I read it.
Based on recent experience - call ahead to check filter stock. Took 2 days to get mine in at Allison (S&S) shop.
Correct on the high capacity filters and and to me a no brainer in changing over to Transynd( even though I drained mine out and put in the Amsoil Torque Drive instead). The coach shifting is way better and heat a none issue now.
I am afraid that the extra cost of doing another drain (of around a gallon and filters) is a needed exercise and puts you miles ahead of the game as you may never have to do it again.
JohnH
I thought it was a full drain and refill with filters at second change
The first one is obviously a full drain (but will not get at the torque converter oil etc) along with filters and then at 25k another drain but only what comes out with filters which is around a gallon or so AND again filters. Just like I mentioned before.
JohnH
Ah
That's a better proposition
When I changed the fluid and filters on our coach, found the Allison filters were cheaper than the napa filters. Your coach should have had transynd from the factory. Would go back with transynd and at the next time due for filters and fluid again use transynd and then most all of the non transynd fluid should be gone.
So filter kit 29548988 and transynd, talked to a few shops and they all quoted $1000
Just wanted to check, the filter kit listed is 29526898. But understand that there is a high capacity option 29548988 .
This is for the 3000 transmission
Read post 7.
Just checking it applied to the 3000 transmission
Had our 1994 Allison MD3060 transmission serviced with Transynd, new filters, and a flush (changing over from non synthetic) 9 days ago at Julian's Transmissions in Amarillo TX ( authorized Allison shop).
With tax included: $692.70.
Jimmy, that $1000.00 is a joke total rip off. The Transyd here in BC Canada is $50 gallon (cndn) and filters are $125(cndn) so work it out from there and we pay more for all things compared to you guys south of Border. I can do it all in about an hour or 2 max (drain and filters) and have done many times, so why that cost??
JohnH
Thanks John , will try a smaller shop , just outside of town , hopefully I can get price down to around $600
Most owners do a better job than most shops on this-- it is not technical.
What makes a difference:
Taking time to clean the bottom of the transmission before opening it up so no dirt is introduced.
Using an inch-lb torque wrench on the filter plate bolts. Steel into aluminum, so air wrenches are a no-no.
Allison filter kits come with complete instructions (at least did last time I bought one).
Be sure to only use the style of new gasket that matches what is on yours now-- they come with different styles to accommodate different transmissions.
I thought Allison recommended not flushing the transmission.
Brett, I have a feeling that Allison has now changed the requirement to only use the style (sq or O ring style) that is currently on your unit. I say this because a few weeks ago Geoff and I did their Trans' and oil and on his it had the square seals and the new(high Capacity) filter kit had only the round O rings. This filter kit was dated fairly new and upon asking the Allison place here they told me that this is the one to use now, so I guess that directive is now gone??? I did not see any leaks etc after job done so I guess it is ok.
JohnH
As john has previously mentioned, one of the items he did in September on our 1994 U240 GV was a transmission filter change. The filter kit was # 29548988 ( $113.40 cdn + 12% tax ) When the filters were removed we collected 3.8ltrs + 1 cup of transynd. Local price for the transynd was $55.80cdn + 12% tax for 3.8ltrs.
I was not charged for the use of the Pit!
I noticed a post from a while back about disconnecting a cooling hose to drain more fluid . .
Any thoughts on this method?
If you pull the drain plug from the transmission and the filters you should get approximately 5 gallons of fluid. out of the transmission, do not think it would be advantageous to remove the coolant hose as by draining the transmission, you will remove about 1/2 the fluid and then at the next change also 1/2 so at that point you will have nearly all transynd. You can do this job yourself and save quite a bit of money.
I would not pull the hose because of potential leaking hoses,they get brittle with time and heat.
Ron, I seem to remember that after the first changeover to Transynd in which you do take the drain plug out and the filters which are actually in a seperate chamber from the drain plug (filters are in the same one), then, 25k later you replace only the filters AND the oil that is in that side which is as Geoff mentions too. Allison qualify that as good a total change that is needed to meet specs. Now I have not read the book on it today but this sticks in my mind.
Doing it the way you mention is around 10 galls total, what I mention is is total 6 + -. ??
Interesting!!
JohnH
I looked at Barry's sight and I thought it stated 5 gallon for my U295 with Allison 3000?
Yes, a 5 gallon pail will change the fluid and filters. It will not do additional draining/flushing. It is what Allison recommends.
Does the filter kit include torque settings for filters , cover plate and drain plug ?
Would it be prudent to order the Allison drain plug repair kit .
There is an O ring for the drain plug in the filter package.
JohnH
John
What torque do you use on filters , filter plate and drain plug
The filter plates I think is 42-45 not sure of drain plug as it does have an O ring so I guess usual tightness with wrench!!
JohnH
Just found it
Cover bolts 38-45 ft lb
Drain plug. 18-24ft lb
Would use a 3/8 torque wrench over a 1/2 inch,less chance to overtighten.