Re: [AMC-list] Was: Anyone have ...now M-3x tranny cooling

[Ken Ames <ameskg@xxxxxxxxx>]

The different trannys may be explained by the different tooth count on the
speedo drives for the different differential ratios and tires.

Ken


Quoting Matt Haas <mhaas@xxxxxxx>:

> 
> The tranny that was in the wagon originally was for sure air cooled and 
> according to the parts book, an M-36. It still has the original radiator 
> and it does not have the cooler in the bottom tank. The tranny swap was 
> done two owners ago and they put an aftermarket cooler on it at the time.
> 
> I took a look at my parts books and they list 8 different transmissions 
> (serviced by 6 part numbers) for 67 199's and 4 different transmissions 
> for 67 232's. BTW, these counts are just for Americans, I did not look 
> at other models. I was shocked at how many different automatic 
> transmissions are used in a given year. The 1967 list is over a half 
> page long.
> 
> The parts book clearly states both M-36's and M-37's were available 
> either air or water cooled.
> 
> The car my tranny came out of had A/C so I would assume the water cooled 
> tranny is part of the heavy duty cooling package which was part of the 
> factory A/C package.
> 
> Matt
> 
> On 6/12/2009 3:14 PM, Wrambler spouted this sage advice:
> > Frank
> > I parted out one 
> > 69 199 auto = aircooled
> > 68 199 auto = aircooled
> > 68 232 auto = aircooled
> > 69 232 auto = aricooled, my car with the S-42 tag.
> > I know one of the tranies I sent out west was a 37 and air cooled.
> > The remaining two trannies are sitting in my shed, soon to be scrapped as I
> have stored them for 10 years now.
> > I I can remember to do so I will look at the trans in the shed to see what
> they are tagged as before they go away.
> > all I have is the tranmissions, not converters or bellhousings.
> > 
> > Believe me, if any of those cars would have had a liquid cooled trans I
> would have kept it! or at least known what it was!
> > My TSM is either a 66 or 67 and it mentions the liquid cooled trans as
> being a "fleet option"...
> > 
> > Guessing what they did with the model numbers at this point is pretty
> fruitless, unless we can gather enough info from people to cover enough of
> the models in question to rule out swaps and such.
> > 
> > Mark Price
> > Morgantown, WV 26508
> > 1969 AMC Rambler, 4.0L, EFI, T-5
> > 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
> > "I realize that death is inevitable.
> > I just don't want to be around when it happens!"
> > 
> > ----- Original Message -----
> > From: "Frank Swygert" <farna@xxxxxxx>
> > To: amc-list@xxxxxxxxxxxx
> > Sent: Friday, June 12, 2009 2:39:35 PM GMT -05:00 US/Canada Eastern
> > Subject: Re: [AMC-list] Was: Anyone have ...now M-3x tranny cooling
> > 
> > No hole and a smooth converter seals it -- no air cooling. Apparently only
> the M-35 is air cooled, guess they gave up on air cooling after 66. The 67
> TSM is the only one that indicates different tranny models for different size
> engines (M-36 for 199, 37 for 232, 40 for 290/2V, 11 for 290/4V... in the
> supplement). That probably indicates that the 35 was used in 66, but may not.
> Pre 67 TSMs don't list trans model numbers. Don't know if the M-36 was air
> cooled or not, might be. 
> > 
> > If someone has a 67-69 American with 199 and original auto trans look at
> the passenger side of the bell and see if there's a large opening there. That
> indicates the air cooled trans, as would no cooler lines between the trans
> and radiator (or external cooler, usually in front of the radiator). AMC
> stopped using the M-3x series after 69 -- 1970 199s got a model 40. 
> > 
> > ---------
> > Date: Thu, 11 Jun 2009 20:32:15 -0400
> > From: Matt Haas <mhaas@xxxxxxx>
> > 
> > It does not have the hole for the air inlet and the T/C didn't have 
> > anything on it that looked like a fan. Smooth is probably a good 
> > description of it. A quick look in the parts book says that it should be 
> > an M-37. 199 cars (which is what is in the car) got M-36's.
> > 
> > Matt
> > 
> > On 6/11/2009 9:38 AM, Frank Swygert spouted this sage advice:
> > 
> >>> Seems like I researched this last time it came up, maybe a year ago. The
> 
> >>> M-35 is air cooled only, the 36 and/or 37 has an extra tube inside in 
> >>> one corner, the 35 case isn't drilled for that tube. According to Mark, 
> >>> some of the 4x series were air cooled as well. Does your liquid cooled 
> >>> 3x have the air cooled torque converter as well as liquid cooling? If it
> 
> >>> has the big hole in the right side of the bell the answer is likely 
> >>> "yes". The converter has a "fan" made on it in the air cooled models, 
> >>> but it's not immediately recognizable as a fan. Of course a standard 
> >>> converter is smooth on the "back" side. I think all the M-3x series were
> 
> >>> primarily air cooled, with the liquid cooler added for additional 
> >>> cooling when desired/necessary (such as the heavier cars, towing, or 
> >>> hotter climates). Just doing a little detective work here!
> 
> -- 
> mhaas@xxxxxxx
> Cincinnati, OH
> http://www.mattsoldcars.com
> 1967 Rambler American wagon
> 1968 Rambler American sedan
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