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ive heard from several people that you must pre-heat the axle housing in order to weld on spring perches. is that only for cast parts (diff housing)? also do you need to use a specfic type of wire ie (flux core) or would .035 wire work ? your help is greatly appreciated
 

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If you're welding to the axle tubes, no preheating is necessary. And yes, .035" wire is fine, flux-core, or not. Myself, I'd prefer it, because it has better penetration than MIG does. And I'm all about penetration :hump
 

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no need to preheat when your welding steel on steel. I prefer the stick welder with a 7018 in it because I can get much better penetration, control, and a better looking weld, but a wire feed will work fine too
 

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I like the stick also. I like that i know how deep the weld is, by the size of the puddle, and i have better control that way.
 

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badass1tonf100 said:
ive heard from several people that you must pre-heat the axle housing in order to weld on spring perches. is that only for cast parts (diff housing)? also do you need to use a specfic type of wire ie (flux core) or would .035 wire work ? your help is greatly appreciated
As already mentioned and just confirming.....I didn't preheat mine. I've only heard that discussed as it relates to cast parts. I used my 175 mig with .035 wire.
 
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