Tcase crack solutions

Ricky B

Ricky B

Wiiide Open
Joined
Mar 20, 2005
Location
LKN - Tha Dirty Mo (Mooresville, NC)
Ok so I've had a very slow leak in my tcase for over a year now, never really caused me to have much concern I just figured one of the seals was leaking a little bit. Well I drove back up to State from Mooresville to move in for this semester and when I pull off the interstate i hear this really bad grinding noise and low and behold I have a really huge crack down the side of the housing and just about all of my fluid has leaked out of it. I'm not sure if its whats been leaking all this time or if it all of a sudden decided to crack but now I can't keep fluid in her for very long so i either need a new housing or something.

Now I know you can get a pro welder to weld up a crack in an aluminum tcase or tranny for you, I just don't know how good of an idea it is. I've gotten about 50/50 good/bad opinions from people on getting a tranny/tcase welded up but never gotten anybody who has actually had it done's opinion. Anyone want to chime in on this? Whatever I do needs to be done pretty soon cause its in my Z71 (np241) and I have nothing else to drive up here in Raleigh. Also if you know of a place I could take it to get it welded near State would be cool too.

Only problem I forsee with getting a new tcase is that I've not had any succes before in trying to find used 241's for sale so I'm thinkin I aught to just try and get it welded.
 
You can get the case pieces individually from a dealer or a trans rebuild shop. they are not that expensive and fairly easy to rebuild yourself.

My guess is that something internal failed and caused the case halves to try and seprate causing the sudden spilt.
 
Yea i've cracked open several 231's to do sye's ad everyone says there bout the same as 241's, I'll start callin around som tranny places round here see if I can't find a rear half fer cheap.

The case itself cracked in a real random spot on the side where there is nothin just a flat spot, it's kinda wierd but the case itself drives fine and has been with that crack for a while, and when i drained it i didn't see any metal peices in the bottom so I mean I can probably just fix the back half and keep runnin it, plus while I got it apart i can check to see if it is damaged inside.

I'm just wonderin if it'd be cheaper/quicker to get a it welded or to replace the rear half.

Course it'd be easiest to just get a whole new one for really cheap ;)
 
You are gonna have to break it all down just to weld it anyway. No professional welder is going to do it with it in the vehicle soaked in highly flammible tranny fluid.
 
It's junk. I'd find another one.

It'll have to come completely apart and be degreased before it's a proper welding candidate, and even then, you might as well rebuild it before you're done.

Or, get a known-good donor and be back on the road in 3hrs.
 
Studnuts @ Blackout Autosports has one on the floor in his shop. I don't think he is planning on using it. Send him a pm and see whats up?
 
As a quick fix, drain it, clean it with brake cleaner, and cover the crack with JB Weld. Then fill and see what happens. I've seen a case driven over 300 miles with the JB fix on it plus some of my own equipment as well.
 
is it cracked completely open, or just a small crack in it?

might want to also try Hondabond, or Yamabond, or 3Bond...all the same stuff...find it at your local performance street bike shop...they use it to seal up all kinds of items, engine blocks, etc...

Greg
 
Thanks guys I found one at a yard in Durham so im just gonna throw it in there and keep my old one fer spare parts, wish I woulda found out bout Jon's thou before i bought it since he's right down the street but oh well, preciate the help.

As far as the crack itself its cracked along the side and then kinda wraps around the back its a good several inch long crack I filled the case back up a couple days ago and its bout all leaked out now, but its cool since I got a new case now, probably gonna throw it in fri afternoon after classes. The advance parking lot by State is almost my official State garage now, lol. Everytime i need to do work I just go do it in there parking lot so if I need something I don't have in my trucks toolbox I can just walk inside :rolleyes:
 
jrraw23 said:
The advance parking lot by State is almost my official State garage now, lol. Everytime i need to do work I just go do it in there parking lot so if I need something I don't have in my trucks toolbox I can just walk inside :rolleyes:
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Nows thats funny...hope its a clean install for ya
 
you're going to replace a transfer case in the advanced auto parking lot???? if i was the manager i'd be pissed at you
 
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