I didnt know that there was more than one. I have replaced mine on the tail of my trans, where the driveshaft slides in. I thought that was an output shaft seal. The only reason it was leaking was because I knocked it out of whack when I twisted my driveline at the pulls.
you are talking about the front diff right? not the t case output seals. I would use oem I think they fit and work better. just so you know its easier to do the right side one by taking to tube out of the vehicle to disengage the clip holding the axle in.
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