Quote:
Originally Posted by g356gear
hey guys,
I am installing a 4 link in my 69 camaro and need to weld 4 tabs on the axle tubes. Each tab requires a 3" weld. Differential is still assembled in the car since the tabs need to be welded on with the suspension at ride height. What would be the best way to weld these on while keeping heat damage to a minimum?
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I have a good bit of experience welding onto axle housings for off-roading applications. I suggest using a 220v welder at a minimum (a 175A Lincoln/Miller/Hobart/etc) will work sufficiently. Get the brackets in place where you want them and tack them on. Once everything is set just right weld the outside of each tab. Then go back and weld the inside of the tabs. Also, it will depend on what axle you have with regard to warp. If you are running and old ford 9" it probably has relatively thin axle tubes. Take care not to blow through the tubes. If you do turn back the amperage and fill in the hole you made. If you are running a GM axle, new 9", Ford 8.8, Toyota axle, Currie, Spidertrax, etc. Just weld it and go. You don't have to worry about the axle warp. If you are ever worried about twisting the axle tube inside of the cast center section of some axles then weld the axle tubes to the differential housing. This requires preheating due to the cast iron welding involved.