I have a cracked 4x4 Extension Housing on the back of my allison. Merchant and GM want $500+ for one 
Anyone know of anywhere else I can get one asap?
Anyone know of anywhere else I can get one asap?Rear Extension Housing
- Thread starter TheDieselRock
- Start date
Awesome. I found it. At first all I saw was the $500 piece from engineered lol
I only saw a couple and they were more $$ than the one on amazon. But your right though I Have seen used ones on fleabay go fairly cheap!
I'm probably going to get a tougher one made since I have to get a new slip yoke. I'll have my old one rebalanced for a spare or maybe sell it :whip:
I replaced bushing, u joints, seal and mine still vibrates. Checked for dents and weights where still on driveshaft. Idle where mines coming from.
I'm in the same boat, I've done everything but have the driveshaft balanced. I sure hope it goes away. Pretty sure its what wrecked the rear housing and caused my extension housing to crack oh and chewed my slip yoke up too
ahh yes I knew I was forgetting something. I'm kicking myself for not doing it in the beginning. Who knows, it could have saved the extension housing
About all they do is hold some of the pieces together when something does fail.
If your u joint goes bad it will not save your extension housing. If you have harmonic vibration going on in the transfer case; it will not save you.
What it will do is keep broken parts from falling to the ground when you shatter your transfer case. We saw this happen on Casper back in '08 while Pat was making a pass.
Okay, I totally agree with that. With everything being right, it will provide some stability... That's what I thought was meant.
I did not disagree with you. I was just adding my experiences.
Joe Webb and Ron at Suncoast were the first guys to make the brace. They did this because there were a bunch of cracked housings back in '03/'04. I got the first one to install on my truck. Suncoast sold a bunch or them. Most of the guys cracked their housings again after the brace was installed. After closer inspection by a bunch of us guys, we discovered bad u joints. Once the joints were replaced the problem stopped. Allison even redesigned the extension housing. Just giving you guys some history here.
Have fun pulling the trans! If you haven't done it before I recommend looking up the Durallymax write up on Scribd.com on how to drop it. It has pictures!!!!!!
Also, you will either need to spend a hundred bucks on the allison spanner nut socket.
Or go to carquest/auto store and buy a spindle nut socket. (Hub socket with 4 prongs) but make sure you buy the hollow one made out of sheet metal. NOT the cast one.
Also, you will either need to spend a hundred bucks on the allison spanner nut socket.
Or go to carquest/auto store and buy a spindle nut socket. (Hub socket with 4 prongs) but make sure you buy the hollow one made out of sheet metal. NOT the cast one.
http://www.amazon.com/gp/aw/d/B0016J3YG6?pc_redir=1407364211&robot_redir=1
I'm running this one.
You will need the seals.
You will also have to pull/hammer/tug/curse the shaft bearing out of the old one and into the new one.
I'm running this one.
You will need the seals.
You will also have to pull/hammer/tug/curse the shaft bearing out of the old one and into the new one.