Wield tansfer case? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mrmojo32 · 07-15-2008, 07:49 AM

I have an 89 GMC Jimmy 350-4 speed standard with an aluminum transfer case that has a small stress crack in it from a hard day of off-roading. I think it is a NP 241c.

I think it might havve cracked because of slack in the drive shaft. Is it recommended to to get it wielded or do I have to replace it?

Thanks for all the help.

royo · 07-16-2008, 03:09 PM

IF you think that it is safe than weld away. just keep a spray bottle of water around to cool things a bit . thats what i would do

**Captainfab** · 07-16-2008, 11:51 PM

I don't remember which transfer case it is but one of the later model 'aluminum' ones actually has a Magnesium case....it'll say so on it somewhere.

mrmojo32 · 07-17-2008, 02:42 PM

I guess the real question I have is this: Is it common to wield these transfer cases rather than replace them? I called a shop who said they could.... I want to know from you guys who have seen it done because I drive this truck a lot.

Thanks for all the advice.

Jtrux · 07-17-2008, 02:57 PM

Quote:

Originally Posted by mrmojo32

I guess the real question I have is this: Is it common to wield these transfer cases rather than replace them? I called a shop who said they could.... I want to know from you guys who have seen it done because I drive this truck a lot.

Thanks for all the advice.

They are usually replaced. Are you gonna tig, stick or mig weld it. I don't think it would be easy.

toomanytoyz · 07-18-2008, 12:03 AM

From a Safety Stand point i would Replace it ..............

Rick

**kwmech** · 07-18-2008, 03:45 PM

If the welding is done right, it will be stronger than the case it self-----------

1989 is an oddball year--------------does it have a regular speedo-cable or a sensor? If it has the cable----you will be hard pressed to find another. Depending on the 'crack' and where it is exactly will determine whether or not it can be welded. I welded up an aluminum bellhousing about 20 years ago and still have not had a problem. If you are going to weld, it will have to come comletely apart and be hot tanked before it can be tig welded----good time for a rebuild. Any chance of posting up a pic?

07-15-2008, 07:49 AM	#1
mrmojo32 Registered User Join Date: Jan 2007 Location: Louisiana Posts: 216	Wield tansfer case? I have an 89 GMC Jimmy 350-4 speed standard with an aluminum transfer case that has a small stress crack in it from a hard day of off-roading. I think it is a NP 241c. I think it might havve cracked because of slack in the drive shaft. Is it recommended to to get it wielded or do I have to replace it? Thanks for all the help.

07-16-2008, 03:09 PM	#2
royo Registered User Join Date: Feb 2007 Location: knoxville tn Posts: 1,013	Re: Wield tansfer case? IF you think that it is safe than weld away. just keep a spray bottle of water around to cool things a bit . thats what i would do __________________ nickle and dime

07-16-2008, 11:51 PM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,248	Re: Wield tansfer case? I don't remember which transfer case it is but one of the later model 'aluminum' ones actually has a Magnesium case....it'll say so on it somewhere. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

07-17-2008, 02:42 PM	#4
mrmojo32 Registered User Join Date: Jan 2007 Location: Louisiana Posts: 216	Re: Wield tansfer case? I guess the real question I have is this: Is it common to wield these transfer cases rather than replace them? I called a shop who said they could.... I want to know from you guys who have seen it done because I drive this truck a lot. Thanks for all the advice.

07-18-2008, 12:03 AM	#6
toomanytoyz Luv the Crewcabs Join Date: Aug 2006 Location: Andrews, In. 46702 Posts: 4,097	Re: Wield tansfer case? From a Safety Stand point i would Replace it .............. Rick __________________ 55 Nomad 52 Willys Truck 67 Stepper 67 Fleet 68 Wrecker 68 Suburban 76 Crewcab 79 Gmc Dumptruck 84 Blazer 86 Crewcab Stepside 87 Iroc 89 GMC Plow Truck 91 Camaro Vert 96 Z71 Stepsde

07-18-2008, 03:45 PM	#7
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,571	Re: Wield tansfer case? If the welding is done right, it will be stronger than the case it self----------- 1989 is an oddball year--------------does it have a regular speedo-cable or a sensor? If it has the cable----you will be hard pressed to find another. Depending on the 'crack' and where it is exactly will determine whether or not it can be welded. I welded up an aluminum bellhousing about 20 years ago and still have not had a problem. If you are going to weld, it will have to come comletely apart and be hot tanked before it can be tig welded----good time for a rebuild. Any chance of posting up a pic?



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