GMC Truck Forum banner

06 Front Pinion Seal

968 7
I have an 06 5.3 4x4 z71 and the front pinion seal already started leaking 22,000 miles. is this normal. is this a problem with these trucks. the dealership replaced it without a problem but. I was wondering if I had to worry about it in another 20,000 miles.
1 - 8 of 8 Posts

· Ballin' on a Budget
Joined
·
4,100 Posts
Mine's leaking now too. I just had it replaced when i had my gears installed less than a year ago, but I never had a problem before. How do you replace it? Will I have to deal w/the pinion bearing preload? Should I have a shop do it?

TIA
 

· GMFS slowest truck :read:
Joined
·
7,772 Posts
Mine's leaking now too. I just had it replaced when i had my gears installed less than a year ago, but I never had a problem before. How do you replace it? Will I have to deal w/the pinion lash? Should I have a shop do it?

TIA
never heard pinoin lash...lol

only issue you would run into is pinion bearing preload. you want it to be the same before and after.
 

· Ballin' on a Budget
Joined
·
4,100 Posts
that's what i meant lol. how would I go about doing this? How do i set the preload correctly and not over/under tighten it?
 

· Ballin' on a Budget
Joined
·
4,100 Posts
Has anybody replaced one?
 

· Bayou Surface Drive, LLC
Joined
·
7,961 Posts
Make sure you grease the inner lip of the seal so you dont have a dry start up and chew up the seal. This will help seat the seal to the piolished surface on the pinion.
 
1 - 8 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top