lets talk about a gear change in the front diff

[beingblueeyes]

I'm assuming anyone who has changed gears in a 4x4 has also done the gears in the front. how big of a bear is the front diff to change? what size is the front diff when ordering gears? anyone have any pics? would i need a different diff in the front to run 4.56's?

[BigMac]

It's pretty easy to take out, no sawzall or torch required All you need is a few wrenches and jack stands.

You don't need a different diff to run 4.56's, just call one of the gear vendors and let em know what you're looking to do.

[beingblueeyes]

thanks Mac, how easy dose the front diff housing come apart?

[BigMac]

I unbolted mine, fell off the table and it came open.... its not hard to take apart.

[beingblueeyes]

lol thanks

[tanz45]

Size is GM IFS 8.25.

Use a slide hammer to pull the axle shafts out. (Just like a front wheel drive car, there are snap rings) If you wanna put new seals in.

Doing it myself soon.

[beingblueeyes]

that great man thanks

[2boosted]

I had a little hard time putting a couple of this together....most on the pinion/ring calibration...toe in-out.

Other that that was a normal procedure.

Here is a link for one that might fit you. You might change every bearing and seal.
http://www.ronsmachiningservice.net/...FS-4.56/Detail

Call Ron

[beingblueeyes]

PM'd him