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466 Transmission Interchange
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69rrgrabber
Posted 2018-12-04 11:07 PM (#574679)
Subject: 466 Transmission Interchange


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Posts: 8

Hello! Just curious if an A488 out of a 58 Dodge Swept side is the same as a 60 Imperial or 58 Desoto, Its just the iron case and internals. For $75 I can grab it to use for spare parts. About to start on mt 60 Imperial and thought it would be a good back up.

Thanks,

Carl
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56D500boy
Posted 2018-12-05 1:04 AM (#574680 - in reply to #574679)
Subject: RE: A488 Transmission Interchange



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69rrgrabber - 2018-12-04 11:07 PM
Hello! Just curious if an A488 out of a 58 Dodge Swept side is the same as a 60 Imperial or 58 Desoto, Its just the iron case and internals. For $75 I can grab it to use for spare parts. About to start on mt 60 Imperial and thought it would be a good back up. Thanks, Carl


"The ChryslerTorqueFlite transmission was Chrysler’s long term solution from its introduction in 1956 through the early 1990s, remaining in duty in modified form (for front wheel drive) through 2001 in the Caravan and Neon, and continuing even today with electronic controls for trucks. Long after the Vacamatic was discontinued.

Though the first TorqueFlite was the revolutionary model # A-488, called the best automatic transmission in the world, the most legendary Torqueflite model is the well known A-727, which it replaced it in 1962. Duties first assigned were for the most muscular engines, heavy duty applications, and trucks, the A-727 used an aluminum case (rather than the A-488’s cast iron case), in the early A-727 models, park was actuated by a lever (1962-64 models).

The first generation of iron TorqueFlites had a rear pump as well as a front pump, allowing the automatic-equipped cars to be push started! It probably wasn’t officially endorsed, but it worked in emergencies. For 1966, the rear pump was eliminated because the push-starting capability was rarely used.

Base model cars usually were to get the A-904 and, in later years, it became called the A998/999. The A-904 was a smaller, aluminum-cased version; and, it was very capable of handling the power of the slant six and 273 V8 (later, the 318). The difference between the 904, 998/999, and 727 was largely in d the amount of ‘beef’, and in the torque converters. Much of this confusion probably stems from Chrysler’s early general references to the 904 as “Torqueflite 6” and whichever Torqueflite was behind V8s at the time as “Torqueflite 8.” A V8 version of the 904 did not appear until 1964, when it came out behind the 273. And there was a slant-six version of the 727 for truck use.

The A-500 and A-518 truck transmissions were 727s and 904s with an overdrive added."


REFERENCE: http://www.gottransmissions.com/blog/chrysler-transmissions/1956-to...

Looks like the 56-58 A488 PN was 1823 593 and the corresponding case PN was either 1636 442 or 1736 236.


Edited by 56D500boy 2018-12-05 8:01 AM




(A888PNs56-58.jpg)



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wizard
Posted 2018-12-05 3:02 AM (#574681 - in reply to #574679)
Subject: Re: A488 Transmission Interchange



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Actually, the TorqueFlite cast iron hog is a 466 not a 488
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57chizler
Posted 2018-12-05 12:28 PM (#574703 - in reply to #574679)
Subject: RE: A488 Transmission Interchange



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The '58 and the '60 use a different shift cable attachment, therefore the main cases aren't interchangeable.
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Powerflite
Posted 2018-12-05 2:13 PM (#574710 - in reply to #574679)
Subject: Re: A488 Transmission Interchange



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I agree that the proper term seems to be A466, but where did the A488 name come from? It is all over the place.
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56D500boy
Posted 2018-12-05 3:13 PM (#574713 - in reply to #574681)
Subject: Re: A488 Transmission Interchange



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wizard - 2018-12-05 3:02 AM

Actually, the TorqueFlite cast iron hog is a 466 not a 488


Hmmm....I wonder why All Par doesn't mention the 466, just the 488?

https://www.allpar.com/mopar/transmissions/torqueflite-tom-hand.html

https://www.allpar.com/mopar/torqueflite.html

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wizard
Posted 2018-12-05 4:01 PM (#574717 - in reply to #574679)
Subject: Re: A488 Transmission Interchange



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Probably just another of their errors Dave.

In my opinion it's always best to rely on Chryslers information




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Attachments Untitled_20181205_232108.JPG (544KB - 5 downloads)
Attachments Untitled_20181205_231944.JPG (174KB - 5 downloads)
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69rrgrabber
Posted 2018-12-06 12:33 AM (#574750 - in reply to #574679)
Subject: Re: A488 Transmission Interchange


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Posts: 8

Thank you all so much for the information. It also helps a lot to know the correct nomenclature! I find a lot more info under A-466.
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wizard
Posted 2018-12-06 1:28 AM (#574754 - in reply to #574679)
Subject: Re: A488 Transmission Interchange



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I have no idea where the "8" or 488 came from, but many sites has this error.


The proper nomenclature is 466 though it's rarely used, cast iron TorqueFlite is the most common.

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