Hello,

I'm hoping for some input on the difficulty of replacing the front diff outer oil seals. Possibly replace anything else needed while I'm in there (other seals, gaskets, etc...).

I have a 97 T100, 4x4, 3.4L with high mileage (190K). I noticed the other day when I was changing the oil that there is oil leaking from the right side front diff where the side gear shaft enters the diff housing. I am assuming that its the outer oil seal that is the problem. I would rather do the work myself but I wasn't sure how difficult this repair would be or how much a shop would charge. I have tools, although would need to get some of the special tools like the oil seal puller, etc... I am determined, have know-how, and I prefer to do the work myself so I can learn rather than paying someone else to do it.

I have done google searches and forum searches and haven't found much on this topic, sorry if I missed something and am re-posting.

Let me know if any more info is needed to help with input, I can also post some pics it they help too.

Thanks again,
Shane

 

hey dude,
i can only think your talking about the pinion seal if the leak is coming out of the diff housing. thats a real easy job, only thing that is CRITICAL is your torque on the pinion nut when you put everything back together. MUST be at torque spec which is usually 180lb/ft+. not sure exactly what it is for your truck. make sure you got a proper torque wrench but other than that, ya way easy job.