10 bolt... stupid question

[TPISly-C10]

So next stupid question... ive never pulled a yolk, is this the correct seal for a 10 bolt?

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this is the one i ordered for my 86 C10 1500 diesel and it fit perfectly

 

[78C10BigTen]

I used the pinion seal in the pic above and it was not the right one. Mine had a metal flange. I have a 10 bolt on an '86 K10. You should be able to tell once you pull the yoke. The one I ended up using is in the link below.

https://www.napaonline.com/en/p/NOS...ion+Seal+-+Rear+Axle&keywordInput=pinion+seal

Thats why i asked, i saw there was 2 diff kinds