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Old 12-11-2003, 03:49 PM
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welding axles tubes

What do you all think is the right way to weld axle tubes? Short little welds with spaces? Weld all the way around? This is for a GM rear so is cast to steel. Also I am just doing a little practice on a junk rear. I am using a 7018 rod. Any better for doing cast to steel?
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Old 12-11-2003, 04:17 PM
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7018 is good...Is this rear going to be in a drag car? If so, I would weld it solid all the way around.... To keep from pulling the tube too much I weld the bottom quarter first then the top quarter opposite the bottom, then the other bottom quarter and finally the top quarter thats left....This way should help keep the rear end straight....GlennK
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Old 12-11-2003, 09:51 PM
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Thanks Glenn
That is what I had in mind but wanted a little from someone else.
Bob
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Old 12-12-2003, 07:26 AM
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Do your self a real big favor and go find somebody with a jig to weld the tubes in. I fix them all the time and find them bent from the manufacture. Did a nice new currier that was bent over 1/2 inch on one side and 1/4 inch on the other. If you heat the tube red hot the size of a dime it will pull the tube,can you imagine what welding the tube will do? Here is just part of the jig to keep the rear straight. You cant get one straight without one. Tried for a lot of years LOL
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Old 12-12-2003, 07:33 AM
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Another that was welded real pretty(not by me) and i ended up throwing it away it was that bad. Way to much heat and over welded. This was done at a rod shop that has been doing them for years. Somehow they seem to lose wheel bearing and axle seals a lot.
Look around for a good oval track shop most have the jig and its not very expensive. I think i get 100 bucks when the guy brings me a clean one ready to go. The brackets and perches also need to be done this way. Anybody tells you diff check there housing and it WILL be bent no doubt about it. Also try not to weld to the cast... try and cut the tube its easer and will stay put.
Good luck
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Old 12-12-2003, 10:14 AM
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Phat is right on, the only way to do it without warping the housing is with a jig. It is physically impossible to do it right any other way.

Vince
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