Need help deciding transmission part number

SlantSixSullivan

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I am pretty sure I'm dealing with an A998, built in 1988 (for 1989) from the Kokomo plant. If anyone can verify that, I'd appreciate it. I bought the car from the original owner, an older gentleman, which leads me to believe it is original to the car. 1989 Fifth Avenue, 318 2bbl

Part number above pan is PK4505206 9953 8186
 

Mikes5thAve

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It looks correct for the year. It could also possibly be a 999 since it seems to have 8 1/4 axle.
 

SlantSixSullivan

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It looks correct for the year. It could also possibly be a 999 since it seems to have 8 1/4 axle.

What makes you mention the 8 1/4? Just curious because I didn't think any of the above information would tell that. I do believe it is an 8 1/4 but lotsa folks telling me otherwise. Thanks
 

Mikes5thAve

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Because of your other post about it.
My 1984 has heavy duty suspension and 999 so I'm guessing that if one came with a 8 1/4 it might also be a 999.
 

SlantSixSullivan

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Because of your other post about it.
My 1984 has heavy duty suspension and 999 so I'm guessing that if one came with a 8 1/4 it might also be a 999.

Gotcha. That would be nice. I may have to count clutches to be sure. I cant find a reputable source of transmission part numbers past 1979
 

Chrycotwo

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The transmission was built at Kokomo (PK) and the part number for the transmission is 4505 206. Unfortunately I do not have a parts books with part numbers above 43xx xxx. My 1984 edition only goes up to 4378 xxx.

The 9953 is the date of production - Oct 27, 1988.

8186 is the sequential production number - the 8,186th transmission built that day.

I own a 1988 Plymouth Caravelle Salon - better known south of Canada as a Gran Fury Salon.
 

BudW

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I couldn't find a PK4505206.

I did find a 4505207 ('88-89 M-body 318 999 w/2.24) and PK4505209 ('88-89 M-body 318 727 w/2.24).
No other numbers even close were found in my manuals.
BudW
 

SlantSixSullivan

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I couldn't find a PK4505206.

I did find a 4505207 ('88-89 M-body 318 999 w/2.24) and PK4505209 ('88-89 M-body 318 727 w/2.24).
No other numbers even close were found in my manuals.
BudW

Those were the two numbers I found as well. I had to double check to make sure I wrote down the correct number. Thanks, Bud
 

BudW

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Typically (not in all cases, though) the drum is almost the same, between those with a disk number difference - except for they machine the snap ring grove. A person can machine the metal plates thinner (not recommended) or find thinner clutch disks (or both), but it is easiest (and best) to find a drum already machined for the higher clutch disk count.

A couple of replacement drums can upgrade most transmissions, when preforming a transmission overhaul.

In cases of A727 (or the larger 4-speed A727 versions) is to upgrade them using clutch drums used in diesel pickups. That won't work in your case, but it is the same concept.
BudW
 

SlantSixSullivan

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Pulled the pan on the trans yesterday, did not want to go any further than a filter change and band adjustment since the transmission was operating fine when I pulled it. So, I did not count clutches to determine the exact model of it. If and when it comes time for a rebuild, I'll find out what it is. The fluid was clean, all parts were in good shape so I slapped a new filter in and got the bands adjusted. Thanks for all the input, everybody.

On a somewhat related note, I did measure the ring gear on the differential I posted pictures of as well. It indeed measures 8 1/4"
 
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