[bshattuck87]

I'm in the process of putting a True Trac and new 4.56 gears in my 2004 Sierra 10 bolt. I'm currently about to put the carrier bearings on and I noticed that it looks like the bearings are not going to go over the carrier? I know it's supposed to be a tight fit, but not that tight? The OD of the carrier is 1.799" and the ID of the bearing is 1.623". Does this seem about right? MY master install kit says 1999-2006 trucks. I don't want to start beating on this bearing and scar up the carrier or bearing if I need to return them.

 

[axisT6]

You have the wrong carrier bearings. What brand is the install kit?

 

[Tyler_pinkerton]

True trac requires a specific bearing set. I forget who makes them, but Google A36 and see what comes up. I know the set was the A36.


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[T-Bubba]

there is a certain install kit for the true trac.

I am trying to find the part number for just the carrier bearing

 

[T-Bubba]

it sounds like the bearings you have are for a 8.5.

you need the 8.6 carrier bearings.

It shouldnt affect your truck but i know it did on my tahoe

 

[axisT6]

There is a specific install kit for the 8.5. Any 8.6 should work....

 

[T-Bubba]

the 8.5 kit for the true trac just uses the bearings from the 8.6 carrier IIRC

 

[bshattuck87]

Ok, so I do not need a specific True Trac install kit? I just need to get the vendor to supply the correct 8.6 master install kit and it will work with the True Trac?

 

[T-Bubba]

go to your local parts store and just get the carrier bearings for your year truck.

measure them and see if it is what you have.

the 99-09 8.6 carrier bearings should fit

 

[Tyler_pinkerton]

Like I said before. I used a U.S. standard install kit and it wouldn't work. I had to order the bearings separately.


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[axisT6]

the 8.5 kit for the true trac just uses the bearings from the 8.6 carrier IIRC

Close. The bearings have the 8.5 OD and the 8.6 ID. The cross section is smaller.