Originally Posted by bartamos
It says they are for trailing arm suspension. The bolts have a length dimension. C10 and C20- same axle tube diameter. So pretty straight forward .

Well, I guess I’ll find out Friday.
It just doesn’t look like the cutouts are offset. And, I’m not sure if the C10 and C20 trailing arms are the same; not even sure if the C10s have trailing arms. I thought it was just C20s.

Then, why do they have two different lengths?

Last edited by GeorgeCz; 12/17/2020 9:14 AM.

1963 C20, 292 (4.8L). 4-speed.