Transmission crossmember bolt sizes?

MOPARMAGA said

3/8 bolt. 3.50 inch long under head including washer. The unthreaded area is 1.75 inch.
Hope this helps

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They are special, their momma told them lol

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Hmm, curious. The holes in one side of the crossmember are 1/2", as are the holes and bracing tubes in the frame. It's the holes in the other side of the crossmember that are a little smaller.