Ernie W

iTrader: (1)

I know this has been covered many times.... I'm currently having trouble with my 8.8 torque arm mount. This is the popular mount used by many. I've seen several times the proper weld technique is to preheat the housing then weld with a nickel rod then allow the housing to cool slowly to prevent cracking of the weld. I just can't find someone to do it.

I found a local guy that does alot of 8.8s. He builds them for Jeeps, mustangs and such. I contacted him and told him what I had going on and he said he just mig welds all that he does and has never had a problem. I've seen pics of work he has done, swap bearing ends over to 9" style, weld bracing on the 8.8s for Mustangs with anti roll bars and so on.

Would the mig welding work?

MY_2K_Z

iTrader: (1)

I don't want to say just mig it but.... Just mig it.

Ernie W

iTrader: (1)

Just a follow up on this. After talking to the guy more, he said he uses a mig welder with stainless wire which is also something I had read that works well. So I guess I'll be taking the housing to him to weld up for me.

Ernie W

iTrader: (1)

Well I hate to bump this but I'm going to. I still haven't found anyone locally to weld the torque arm mount on for me. I'm very tempted to do it myself. A friend of mine is a great welder but has no experience with cast like the 8.8 housing.

The guy that was supposed to do it for me said he uses a mig with stainless wire. Has anybody welded their own housing and torque arm mount using a mig and stainless wire?
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Bob@BruteSpeed

iTrader: (16)

I've welded on cast housings using 6011 stick rod. I Preheat the area and I haven't had any welds crack as they cool. I recently welded a truss kit on a rear from a Jeep using 6011 rod, which worked out just fine on the cast housing. Bob

onebadbowtie86

iTrader: (13)

I have used 7018 rod and mig on cast just fine with out failure. Just make sure its clean and pre heat it the best you can.

The 8.8 is cast steel and not cast iron right?

RockinWs6

With the proper wire you can use mig. Obviously this guy does it a lot, why are you questioning his skills? There are all kinds of stainless mig wires I'm sure he knows this. If you don't trust him simply ask him which wire he is using and check it online.

hiltsy855

iTrader: (35)

The 8.8 housing is cast from nodular or ductile iron. I had a sample tested at our foundry.

hiltsy855

iTrader: (35)

As noted, cleaning + pre-heating & post-heating will yield the best results.