What’s going on here?

[Z71Brother]

Hey y’all, working on a transmission for a little build I’m doing. Pulled this TH350 out a truck bed trailer where it had sat for 30 years, still spins good and all the internals are great! While doing TLC I’m also doing what I call the “Racecar” modifications. Pulled the Governor off to do the tig welding portion on the weights and noticed the housing is either cracked or has a rough casting! I’ve personally not ever seen this in one on this scale. Whatcha y’all think? This thing junk?

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[96greenmachine]

Woah , personally I’ve never seen metal spider cracking like that, could just be a rough casting like you said. Don’t take my word for it though

 

[GreaseDog]

Looks pretty standard from what I've seen.

 

[someotherguy]

Looks pretty standard from what I've seen.

It's a casting "defect" that I think is pretty common. I've seen discussion about it before and was trying to dig up the info but all I could find was very specific talk about flaws that can happen in industrial casting processes.

Edit: yo GreaseDog, long time no see

Richard