blazininthe73
1/2 ton status
I need to fab a new cross member for my 400 and atlas. What size tubing would be best for it. I'm thinking 1.5" but thought I would get some more input.
Last edited:
CK5
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What size tubing for X-member?
- Thread starter blazininthe73
- Start date
1.5" .120 should be fine. I would say wall thickness is more important than diameter, but Im no metallurgist or anything 
cegusman
3/4 ton status
I used 1 3/4" .120 wall DOM for my trans crossmember. Just because that's what I had.
I'd say 1.5 .120 would be ideal... allows for a pretty tight radius where needed/wanted...
chevysmithz71
1/2 ton status
blazininthe73
1/2 ton status
Thanks everyone!
chevysmithz71 - If I'm looking at it correctly, your atlas is clocked flat..? Did you have to do any body mods or big body lift? I'd have to have about a 3" body lift or cut a hole in the floor to clock mine flat.
chevysmithz71 - If I'm looking at it correctly, your atlas is clocked flat..? Did you have to do any body mods or big body lift? I'd have to have about a 3" body lift or cut a hole in the floor to clock mine flat.
he has floorboard mods.. from his build thread.
Here's what became of the floor. 2 pieces to be able to get to what I need.Next the Exhaust.
blazininthe73
1/2 ton status
I went a couple places today looking for tubing today and when I asked if they had DOM they acted like it was hard to find. I don't think anyone in okc has it. Ideas?
chevysmithz71
1/2 ton status
I got a good price at Marmon/keystone corporations. This is CA but might ship close to you.
chevysmithz71
1/2 ton status
Blazinaire
1/2 ton status
I used 2" .120 round (square would have worked just as well here) because when mounted under the frame, it hung at the same level as where the frame itself drops down to 2' further back, giving a flat/level belly.
