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Transmission Swap on 1999 B3000 2WD

sundance

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Atlanta, GA
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1999
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Mazda B3000
Transmission
Automatic
I think that I know what is causing my lockup issues.

I pulled the converter off the old transmission when I was moving it out of the garage and I noticed that there was a yellow teflon ring on a groove in the shaft. I'm pretty sure that there wasn't one in the groove on the donor transmission.

Any thoughts on the implications of driving without this part? Should I just turn off lockup in the code until I can fix it?

Thanks
Chris
 

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RonD

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Yes that could be the problem
Try part number F77Z-7L323-AA
Thats a 1997 part number(F7) so should be good up thru 2000 or even 2011

I also see a 2003 number: 3L2Z-7L323-AA
 

sundance

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Thanks Ron.

3L2Z-7L323-AA Looks different than the one that is on my old transmission. I think that it is a continuous ring and requires a special tool to get it on the shaft.


The one on on my old transmission looks like this


Would F7TZ-7L323-AA work? This is a split type but I cant find any info on it.
 

55trucker

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Engine Size
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2WD / 4WD
2WD
Total Lift
-
Total Drop
mild
Thanks Ron.


Would F7TZ-7L323-AA work? This is a split type but I cant find any info on it.
No, that O ring is not the proper converter shaft seal, the replacement is a teflon O ring, the ring is *square*, it is a complete circle, it has to be lubed, then carefully pushed onto the converter input shaft into the recess.
That ring seals the oil into the converter internals & prevents leaking into the converter housing.
 
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sundance

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Mazda B3000
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Steve,

So you are saying that it is the first link at Tasca, correct? This will slide on without any special tools?

The one that was on my old transmission is split and looks just like the second link PN 56178AT.

Thanks
 

55trucker

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Location
Oshawa, Ontario
Vehicle Year
1998
Make / Model
Ford
Engine Type
3.0 V6
Engine Size
3.0L
Transmission
Automatic
2WD / 4WD
2WD
Total Lift
-
Total Drop
mild
I can't speak to the Tasca parts identification, when I had the trans out 4 yrs ago to replace the converter which suffered a lockup failure due to the shaft bearing the disc rides on I had to replace that same input shaft seal.
It's a common part to the 4r44e, 5r44e, I just picked one up at the local AAMCO trans shop, they had a stock of them.
 

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