muffinman

I want to weld the axle tubes to the center section on a ford 8.8 to keep it from rotating. Any advice on rods or technique? Don't have a mig strong enough so it has to be stick welded.

JeepingDan

Welds usually don't stick to cast iron very well. I would leave it.

muffinman

Ya know that is my first thought. But I have read so much about the tubes spinning in the housing I thought I might try it. Is it possible I am over thinking this?

Hoooper

IIRC something with high nickel content is best for that (either that or something with low nickel so...). It can be done with any though if you are careful about warming and cooling the housing. Using proper technique and rod will just make it all easier

jbetit

This is cast steel correct? 7018 works great!

RENIXBEAST

Most packages are labeled with their intended use. I also reccomend pre-heating with torches prior to welding, not so much cherry red just pre-heated.

SeriousOffroad

Welding to the tubes of 8.8 to the center section is essential! I won't gear one without doing so. I was on a trail ride a few years ago and got to witness a Ford 8.8 spin the tubes in the centersection. The pinion was nose-up at a 45 deg angle.

7018 does a good job, but 8-60 is prefered for mild steel to cast steel.

I use my 220 mig and run a bead all the way around the tubes. Pre and post heat to 450-600 deg. and you'll be fine.

muffinman

Well I have plenty of 7018 and can get 8-60, looks like I will give it a try after all.

lolz_jeep

when you say you wouldnt gear one thats not welded are you talking of over a 4.10?

SeriousOffroad

I'm saying if I touch it, it get's welded...PERIOD.

lolz_jeep

well cause i have one that's a 4.10 but its not under the truck yet so i guess maybe ill weld those before i put it in.

outkast

Center sections are cast steel.

7018 rods work best but I have had good success with using the old standby 6011 also.

PingPong

OK a lot of different rods wil work for welding cast.. but the Correct Rod is High nickel rod.

Also the correct procedures involves degreasing/wire wheeling.. preheating the cast section. Also welding in short 1-2" section and alternating sides, to keep the heat even. then cooling it slowly/evenly.

I prefer using kitty litter or sand and packing the welded cast in it to slow cooling down.