Front crossmember swap question using c20?

[Shortie]

Getting conflicting answers using search so I'll just ask

I have a 69 c10 with stock crossmember and 80s heavy half suspension
I want to build a raised front crossmember, and am wondering if a 73-87 c20 crossmember is usable.
Some people saying width is deferent or that lower arms mount differently where others say just some holes

Wanting to use only the crossmember and my current arms

[jimmydean]

The C20 crossmember on my '66 is different than the way the lower arms attach on my '75 C10 crossmember. The 3/4 ton uses a different mount than the 1/2 ton on the lower arms. It's my understanding the upper arms are the same.

Someone smarter than me might have more info.

[SCOTI]

Originally Posted by Shortie

Getting conflicting answers using search so I'll just ask

I have a 69 c10 with stock crossmember and 80s heavy half suspension
I want to build a raised front crossmember, and am wondering if a 73-87 c20 crossmember is usable.
Some people saying width is deferent or that lower arms mount differently where others say just some holes

Wanting to use only the crossmember and my current arms

I notched a 73-80 1/2 ton x-member & installed it into my 68 1/2 ton. I then removed the notched x-member from the 68 & upgraded to a Dropmember. I took that same 1/2 ton notched x-member, dusted it off & it's now sitting under my 89 C30 CC dually. I'm using C30 lower arms & pre 73 C10 uppers w/a C30 BJ.

[Shortie]

Originally Posted by SCOTI

I notched a 73-80 1/2 ton x-member & installed it into my 68 1/2 ton. I then removed the notched x-member from the 68 & upgraded to a Dropmember. I took that same 1/2 ton notched x-member, dusted it off & it's now sitting under my 89 C30 CC dually. I'm using C30 lower arms & pre 73 C10 uppers w/a C30 BJ.

Ok, and the arm mounting points were the same? I Just don't wanna mess around pulling a heavy duty crossmember out if it's gonna end up throwing money away