"repost again" what size is the 82 dually axle tube ?

i need to know the size of the duall axle tube

chevy/ ford/ dodge/ import?
what axle?

can you post a pic of it?

and the tube as in the axle tube like 3" or 4" or 5" round? or the length of the tube like 18 inches long on each side?

That is impossible to answer without knowing what you have. You know, like manufacturer.....Who made it.
Is it a GM corporate 10.5" 14 bolt, Dana ??, etc?

Even knowing which rear end you have there is a chance of being wrong . Because of the hodge-podge, no rhyme nor reasoning behind what GM did by using what ever was lying around / supplied by the cheapest vendor.

Best advise I can give you is use a large set of calipers or just do the math.... Take a tape measure, wrap it around the axle tube housing (where you're wanting the diameter), get the circumference (C). Divide that by Pi (3.142). That will give you it's approximate diameter (D).

C/Pi = D

Darrell

87 dually stock axle

i had all it posted but for some reason my thread got deleted , im going to cut axle tabs but truck is at home 700 miles away

Should be 4 inch but i have used 3 inch axle brackets with minor trimming

If it's a Gm truck, 82 or 87, there's not one specific stock axle. Is it a Corporate 14 bolt, or a DANA 60 or 70?

It will be either 3.500 or 4.000 .

Darrell

ok thanks and whats a good distance on how far apart should a parallel 4link bolt holes be at the axle