Ford 9" axle

[yoshi]

I decided it was time to fit the pinion seal that I ordered about a month ago. After reading & watching videos on how it's done I bit the bullet & removed the seal only to discover the new one is too big, my supplier said it's the seal that they always use. It's 1/4" too big on the o\d. Any idea what's going on, why is mine not the normal size? Thanks

[Speedbumpauto]

What they probably gave you was a 7044NA seal which fits most 9" rears. The one you need fits "small" 9" rears made in the late 80's. The part number is 3604, I think. You should be able to get the specs on both from the net and see which matches your old one.

[yoshi]

That's very helpful many thanks, any idea which vehicles these were typically fitted to?

[Speedbumpauto]

I think they were in the last mid 80's pick ups before Ford converted to the 8.8 rears on all their full size stuff, but that's just a guess.

[mphudak]

This might shed some additional detail
http://www.ford-trucks.com/forums/77...ification.html

[yoshi]

Thanks but not really

[mr48chev]

If you didn't damage you old seal too bad you might be able to get the number off it or a bearing house or parts house can measure and match it.

If you can get the number off the old seal post it and I or someone else will interchange it and see if we can give you some seal numbers to hunt with

[yoshi]

Thanks, speedbumpauto has given me a number of 3604, my seal has a-9362 on it.

[yoshi]

I managed to get a 3604 & now I'm up & running again, many thanks