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|My 1969 GMC Has A Allison MT-30 Tranny.|
Its an Auto but I have no real Idea how many speeds. the shift selector says 6 but its hard to trust. I went to te Allison web site and could find very litte info on this model,it seems to be there very 1st model. Also I have some kind of Hydralic breaking system,that seems to take the place of Jake Breaks on a Diesle Rig. I don't Know how to opperate this or the Apropreate conditons in which to use it. any Info would be welcome. -Beorn the bus Bear-
|Re: Allison MT-30||IHC Busman||2-27-03|
|Im guessing that it may be your parking brake. if its a lever it is definately the parking brake.|
|Re: Allison MT-30||wrench||2-28-03|
|I got the MT40, which is the next one with more torque. In a 1972 wanderlodge with a 391 ford.|
It's a 6 speeds, one of the best tranny Allison built. when selector is in 1-2, it will start in 1& shift not higher that 2, selector in 2-3, will start in 2& shift not higher that 3, when in 3-5, will start in 3, will shift 4, & not higher that 5,
& in selected in 3-6, will start in 3 and shift 4-5-6, which make it 4 speed highway with 2 crawler= 6 speeds.
The braking system is a hydrolic retarder, with the oil cool by the radiator.
when you push the pedal to the floor, it act like a brake without wear for long downgrade. If you you use it in montain, make sure the temperature sensor work with the warning light in the dash.
Gaskets, oil filter & parts are available. Many will tell it's too old, just don't believe them.
If need more info, email by removing the REMOVE in the email address.
|Re: Allison MT-30||meisam||9-8-07|
|I need this information please|
|Re: Allison MT-30||Beorn042||3-3-03|
|Thanks FOr the Info Wrench, It totaly jives w/ what little I've been able to dicern by looking at the System.|
have you heard of anyone running one of the MT30s? is it as reliable as your MT40? seems to be set up the same.
what kinda mileage do you get w/ you set up and what is your top crusing speed?
sorry I could'nt E-mail you I am in the process of changing accounts. Thanks Again -Beorn-
|Re: Allison MT-30||wrench||3-4-03|
|The tranny is the same except it's rate to a lower torque capacity for a smaller engine ex: ford 330 CID vs 391CID.|
I got the 391CID ford with the MT40.
I drive 65-70 MPH &getting around 5 MPG, same milage with a car in tow or a fulled loaded 1 ton van. The best I ever had was 7 MPG at 50-55 MPH, on 500 miles trip, that make 3+ hrs for differance in 2 MPG, so I use the fast lane. I can speed up to 80 MPH
NO TOW. But got the tongue out the tail pipe!! A 330 won't be strong enough for that.
|Re: Allison MT-30||boern042||3-6-03|
|Yeah I have a 305 GMC Driver so that makes sense with the size tranny.|
sound like i'll be getting there slow, no matter where I go! that works as long as i get here.
thanks again Beorn.
|Re: Allison MT-30||David L. Steinwinder||7-23-04|
|Recently purchased a '72 blue bird RV. It has an alison (I don't know which one) and a ford engine (I don't know which one). I do know that the ignition controm module (with no identifying marks)is burned out and I can't find another. Has anyone had this problem with their "72 blue bird?"|
|Re: Allison MT-30||Jess "Buddy" Stubblefield||1-21-06|
|Is this the Dave L. Steinwinder that graduated from Bogalusa, LA? Would love hear from you!!|