differential bearing question

[Johnny Lupara]

..I was down at my ford dealer talking to my mechanic and the service manager about shelbyfest, and they mentioned they had just put 373s into a local gt500 owner's car.......they also said to be on the safe side they got a pinion bearing in case they screwed up the old one, and showed it to me (didn't have to use it) they said it was the one specific to the gt500 and the bullit, which sounded right to me.

then they threw me for a loop; they said the one they took off the old set of gt500 gears looked different than the new one they got as a possible replacement.....does anyone here know why there might be a difference between the one that came on his car (2009) and the replacement bearing from ford? I am getting ready to do this myself later in the year, and want to have everything pinned down...

[TOMMY GUN]

Speedracer would know this.




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[TOMMY GUN]

Okay maybe Birdman too.




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[TOMMY GUN]

...and 68Fastback.


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[TOMMY GUN]

...and maybe Alloy Dave.



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[Super Snake]

Originally Posted by Johnny Lupara

..I was down at my ford dealer talking to my mechanic and the service manager about shelbyfest, and they mentioned they had just put 373s into a local gt500 owner's car.......they also said to be on the safe side they got a pinion bearing in case they screwed up the old one, and showed it to me (didn't have to use it) they said it was the one specific to the gt500 and the bullit, which sounded right to me.

then they threw me for a loop; they said the one they took off the old set of gt500 gears looked different than the new one they got as a possible replacement.....does anyone here know why there might be a difference between the one that came on his car (2009) and the replacement bearing from ford? I am getting ready to do this myself later in the year, and want to have everything pinned down...

It is a good idea to have a replacement when you change your gears. If you have a good bearing press you stand less of a chance of damaging the cage when you pull the old one off.
the bearing in the GT500 is a hight torque bearing
the proper kit PN is M4210B1. Ford just started carrying the bearing separatly, I cant find the PN, I will look for it
they may look a bit different based on the manufacture as long as the specs are the same

[TOMMY GUN]

Originally Posted by Super Snake

It is a good idea to have a replacement when you change your gears. If you have a good bearing press you stand less of a chance of damaging the cage when you pull the one on off.
the bearing in the GT500 is a hight torque bearing
the proper kit PN is M4210B1. Ford
they may look a bit different based on the manufacture as long as the specs are the same

I think what he means is that the one he saw stock looked different than the part in the Ford parts box, but both are supposed to be from Timken?


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[Johnny Lupara]

Originally Posted by TOMMY GUN

I think what he means is that the one he saw stock looked different than the part in the Ford parts box, but both are supposed to be from Timken?


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+1 I even saw the part # on the package, and while I did not write it down, I think it was the same as has been posted elsewhere for the proper replacement.

[Alloy Dave]

Originally Posted by TOMMY GUN

...and maybe Alloy Dave.



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,,

[Birdman]

Originally Posted by TOMMY GUN

Speedracer would know this.




.

Originally Posted by TOMMY GUN

Okay maybe Birdman too.




.

Originally Posted by TOMMY GUN

...and 68Fastback.


.

Originally Posted by TOMMY GUN

...and maybe Alloy Dave.



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I'll defer this one to Speedracer....IMO it should look the same, perhaps they have the earlier regular GT bearing they were using until the correct one became available.

[TOMMY GUN]

[gr8snkbite]

yep...thats what i got...

[Super Snake]

Originally Posted by TOMMY GUN

I think what he means is that the one he saw stock looked different than the part in the Ford parts box, but both are supposed to be from Timken?


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Originally Posted by Johnny Lupara

+1 I even saw the part # on the package, and while I did not write it down, I think it was the same as has been posted elsewhere for the proper replacement.

Oh I see
I agree , they did not look different. There was not any part markings on the original bearing removed, the replacement had the Mfg and P/N, I didn't make note of it.

[SpeedRacer]

TG is correct, with the bearing--nothing has changed. On the original bearings Ford didn't want the p/ns known so Timken did not put them on the bearings. Once FRRP decided to sell them we started putting the p/n on the bearing.

Head Bearing (unique GT500 Part) P/Ns cup & cone: NP159221 & NP254157

Tail Bearing (Common with Mustang GT) P/Ns cup & cone: M88048 & M88010

[Joe G]

Thanks for the info Speedy!



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[SpeedRacer]

Joe,

You're welcome... Sorry for the late reply. Still crazy at work...

Stuart

[Johnny Lupara]

Originally Posted by SpeedRacer

Joe,

You're welcome... Sorry for the late reply. Still crazy at work...

Stuart

..thanks for the input, but I guess that still leaves my dealer with a mystery of why the bearing they were sent is different from the one on the car.....oh well, at least they were able to reuse the one on the car.

[Alloy Dave]

Bump for future.

[SpeedRacer]

Originally Posted by Alloy Dave

Bump for future.

If anyone needs a bearing let me know...

[Alloy Dave]

Originally Posted by SpeedRacer

If anyone needs a bearing let me know...

I will probably get one just in case with the plan of returning it since likely won't need it....which likely doesn't help you much.