How should I remove these bearings on the carrier of my D30? There is this one guy saying that I can take a little propane torch and heat it up, that will make it a little looser to get off, but im scared to do that because it doesn't sound like a good idea. Are there any cheap pullers I could buy?

Would a puller like this get the bearings off? http://cgi.ebay.com/ebaymotors/Cal-Van-2-Jaw-Puller-tools-gear-hub-flywheel-bearing_W0QQcmdZViewItemQQcategoryZ43996QQitemZ458 2326125QQrdZ1

I doubt that will get it off without breaking the bearing apart, leaving the inner race on the carrier.

I usually cut through them about 95% of the way, then run it off with an air hammer

Yes, if it's pretty big. You also need a bearing splitter, ala...
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=3979

Geesh, them suckers must be on there pretty tight then. What does the bearing splitter do just pop the bearing up a little? Would that heat trick this guy told me apout work?

There are a few different types of bearing pullers/spreaders.
http://www.2cvtools.com/52e2ce10.jpg
http://www.toolworks.com.au/images/products/pullers/puller3.jpg
http://www.fullsizechevy.com/fscu/axletech/image100.jpg

The first type can be had for about $40 when you can find them. You have to get one that is the size you need. The second for about $50 but has a tendancy to damage the bearings. If you use it with the flat side facing the bearing you'll have better luck. these come in a lot of sizes, very small to extremly large. The last one is VERY nice! It also costs about $350 :D

Best way is to get the old bearings off any way you can and use new bearings when you rebuild, unless your doing this a lot... in that case get the high dollar unit. But if you were doing it enough to justify the $350 unit you wouldnt have asked this in the first place. :D

Geesh, them suckers must be on there pretty tight then. What does the bearing splitter do just pop the bearing up a little? Would that heat trick this guy told me apout work?Yes, pretty tight.
The splitter is kinda misnamed. It grabs the back side of the bearing or cage and spreads the force out around most of the possible contact area, and gives you something to hook the puller to. With just a puller, you'd rip the cage right off.

Note that the puller/splitter approach is less than ideal IMO. You may be better off taking it to your local shop and paying them to do the work with a press. It's usually not very expensive.

I would usually recommend the right tool for the job. Unless of course its out of your price range.

http://cgi.ebay.com/ebaymotors/Auto-Tools-Differential-SiDe-Carrier-BeaRing-Puller-Kit_W0QQcmdZViewItemQQcategoryZ43996QQitemZ4576244 956

You may also be able to get a machine shop to do it, or rent the kit.

Good luck

Given the right puller, it takes a couple of seconds to pull the bearing.

Ask around at a local shop what they would charge you to pull the bearings. Literally, it should take the guy no more than a minute to slip the puller on, pull the bearing, flip the diff over and repeat it again on the other bearing.

http://www.stu-offroad.com/axle/arb/arb-89.jpg

Ok maybe I might just take it to a shop then, I am buying a rebuild kit so I dont need the old bearings, but I wanted to bore the old ones out a little with a dremel so I can pop them on by hand when I install my new gears, then once I get the backlash and pinion depth set, I would pull those off and install the new ones and check again to make sure everything is right. I wonder how much they would charge?