2007 Winnebago Voyage 35L transmission?

[BoiseScooter]

Recently bought our first Class A motorhome, on a Workhorse Chassis with the GM 8.1L engine and Allison transmission.
Looking at changing the transmission fluid and filter. My manual lists two Allison transmissions possible. How to determine which mine has? Thanks for any help.

[MoCoTom]

Check to see if there is a sticker or the dipstick will have it printed on it stating the trans has Transynd fluid installed. There is a good possibility by 2007 that the transynd was installed from the manufacturer and has a change interval of 100,000 miles. You need only change the small spin on filter as maintenance yearly. If you do decide to change fluid make sure you replace with the Transynd.
Tom

[edgray]

Originally Posted by BoiseScooter

Recently bought our first Class A motorhome, on a Workhorse Chassis with the GM 8.1L engine and Allison transmission.

Looking at changing the transmission fluid and filter. My manual lists two Allison transmissions possible. How to determine which mine has? Thanks for any help.

Regardless of your WCC chassis model, the Allison Tranny uses a spin- on external filter, Allison part number 29539579, and that is the Only filter you change unless doing a rebuild. Look for and re-use the magnet that looks like a flat washer. It is most likely stuck to the top of the old filter. Wipe it clean and reinstall.

[edgray]

ALSO, be sure to use any brand of ATF that shows it meets Allison standard TES-295. Do NOT use Dexron VI ( Dex 6).

[edgray]

Originally Posted by MoCoTom

Check to see if there is a sticker or the dipstick will have it printed on it stating the trans has Transynd fluid installed. There is a good possibility by 2007 that the transynd was installed from the manufacturer and has a change interval of 100,000 miles. You need only change the small spin on filter as maintenance yearly. If you do decide to change fluid make sure you replace with the Transynd.
Tom

MoCoTom is correct.

In fact, WCC began installing TranSynd in all their Allisons on the assembly line starting April 6, 2005. Unless a PO has changed it, that is most likely what it has now. Any Tes-295 fluid is expensive to replace, but after 13+ years I would at least have it tested by a lab such as J.G Labs (see info in Allison Forum here on iRV2) to be sure it isn't contaminated.

[BoiseScooter]

My Winnebago Voyage, a 2007, has only 36,000 miles, so not much use, and had been sitting awhile before I bought it. (Bird nests built under the hood. Sat at a rural farm in Idaho.) So I'm thinking of changing the fluids and filters and hoses and belts, "just because." Last thing I want to do is break down on the road with that "big horse." (I call it my freight train.)
Gary

[edgray]

Originally Posted by BoiseScooter

My Winnebago Voyage, a 2007, has only 36,000 miles, so not much use, and had been sitting awhile before I bought it. (Bird nests built under the hood. Sat at a rural farm in Idaho.) So I'm thinking of changing the fluids and filters and hoses and belts, "just because." Last thing I want to do is break down on the road with that "big horse." (I call it my freight train.)
Gary

Gary: obviously it is your $$ and your choice, but when you see how much 5 gallons of TranSynd ATF costs, I think you may want to try getting the existing fluid TESTED before replacing it. Worse case, you "waste" the cost of a test by confirming it needs to be replaced. I'm thinking TranSynd doesn't age out, like tires do.

Replacing the other fluids such as engine oil and coolant is a no-brainer, along with the hoses and belts. Don't forget to have the DOT 3 BRAKE FLUID replaced, especially because you said it sat parked "a while".

If you don't KNOW if the Bosch Brake recall, 51101-C, has been completed, send me an email with ONLY the last eight (8) digits of the VIN # that begins with "5B4" and I'll check on its status and get back to you. edgray1@gmail.com