Yes, i understand about the e locker thing for the rear axle next week i am going to pick up a h3 rear axle from LKQ auto salvage with 4.56 gears and an e locker for $500 they said i could have the wire harness for it if i can get it out of the hummer without destroying the other parts in the truck. I am going to look into a front axle out of the hummer but i can regear my axle to 4.56 and a master install kit for 400 shipped and i know that will fit. The hummer front axle is different in the hummer the control arms are cast iron on the hummer and steel on the colorado/canyons.

I also dont want to lock the front end because i have broken my cv's 3 times and they are expensive and i think locking it will make them brake easier. So i might just regear my front end but if the hummer front end is stronger i might look into it.

 

Hummer CV"s are tough mang!

But seriously, you might actually pop cv's less w/ the locker. CV's pop w/ open diffs because one tire spins like crazy, then all of a sudden catches traction. This is what splits them.

With a locker, both tires on the axle are getting 100% power all the time, so when one catches so does the other. IT's a little less harsh.

 

You only really need both plug ends and a little wire to save alot on buying the plug. I wouldn't worry about getting any more than that.

I'm assuming 400 for the gears and bearings, you still have to install or have it installed. If you have the tools and can do it yourself great, if you can't- plan on spending about another 300.

Look past the A-arms because you wouldn't be using them anyway, all you'd really be interested in would be the center section itself.

There are two schools of thought on the idea of whether the locker is easier or harder on the front end parts. In a nut shell the front locker makes it that much easier to get through something that may cause breakage by having to use agressive driving to get through thus being easier on things.

The other thought is that the locker allows you to put all power that is available at one end, to one axle, thus increasing the chance of breaking. In my opinion it really comes down to driving style, If you're agressive you'll probably go further and break more parts. If you're mellow you'll probably go further and break less parts.

 

I try not to beat on my truck and i normally dont because i have a suzuki samurai on 35's. But if it breaks or i dont have it my truck get beat on pretty good.
Yeah i have all the tools and i think of myself as pretty good with that sort of stuff so i think i would be fine but, when you mean the center section do u mean the pumpkin and the tubes or just the pumpkin piece and i wonder if i could just buy the whole thing and swap it in if i do i found some really good cv joints to put in the hummer cvs.

cv joint link-
https://www.rcvperformance.com/store...products_id=56

If you guys care here is a pic's of my truck-
http://i812.photobucket.com/albums/z...ystruck017.jpg
http://i812.photobucket.com/albums/z...ystruck015.jpg

 

I'm thinking just the pumpkin without the tubes (or more apppropiately the drivers side tube) because the H3 is awd. Since the H3 is awd it does not have a front axle disconnect which I pretty sure that the Colorado does, which is incorporated in the drivers side tube. So if you want to keep your front axle disconnect you will need to keeep your axle tube, which just bolts to the side of the pumpkin.

A couple more thoughts along this whole line;
I think that they made or are making a Colorado with the 5.3 v8 now. If that is the case there is a good chance that it has a cast iron front diff and/or upgraded cv shafts which would probably be direct replacements for your shafts.

Another thought is that there is a good chance that the H3 uses the same or very similar cv axles as the Colorado which means that the RCV performance outer cv's may work on your shafts.

Alot of this is speculation which would require some verification, although I'm pretty sure that AAM's (they manufacture most of the drivetrain that GM uses) web site lists the front diff for the H3 as being the same one that is used in the Colorado/Canyon. There could be some differences in the casting of the housing but they would use the same internals, which means that it could be a direct bolt in replacement for the Colorado.

 

Yeah that makes sence, they are using the same ifs and same cv's in the new colorados with the 5.3 v8. I understand what u mean about the center section and using my tubes because of the awd on the hummer and the ability to disconnect it on the Colorado. I called rcv and they said people have used the outer cv joint used fo the hummer and put it on a Colorado. Everyone I talk to says it's the same axle all around even the interials I will have to got to a dealer ship and have he order parts to compare of just buy a complete h3 front axle and if it does fit perfect just take it back. Then I'll just regear front and do rcv cv joints if that's what it comes to.