I have done this on my 2 ton.
I cut sections of the P30 frame and grafted them to the outside of the '46 frame.
This provides several things:
1. A flat surface on the bottom for the P30 crossmember to set on.
2. Allows the taper in the '46 frame to be compensated for against the straight P30 crossmember uprights.
3. Provides the upper shock mount-I cut the P30 frame behind the shock mount.
4. The angle of the crossmember has to be correct to get the caster adjusted correctly.
Just to clarify, I did not cut the '46 frame, I just added to it.
Grafted together,you have to look closely to see it.
Last edited by Shercoman; 06/27/2015 2:40 AM.