C30 disk brake swap questions

[Captainfab]

If it is a typical G series van that is a unibody design, the crossmember is different than for a C series truck. If it has a typical frame as a C series truck does, then the crossmember should be the same. The good news is that I do believe the control arms are the same as the C series as well as the spindles and calipers. However I do know that on the G20 vans, the lower control arm shaft is a wierd looking piece with an outter sleeve with rubber in between. The G30's may be different.

The steering box from a G series van will not work in your '66 C30. Even if you change the pitman arm, the sector shaft turns the opposite of the input shaft.

[enonz65c30]

Captinfab,

I figure worse case if the front crossmember is different. I was going to Atleast get the upper and lower control arms, hubs, calipers, steering linkage(leave the steering box) and sway bars. Then I would also not have to worry about the motor if I went that route. I have a lead on a c20 as well that I might steal the crossmember from. I also found a P30 in a junk yard with no motor or trans and missing the spindles. Would a p30 crossmember fit? It has frame rails like a c30 not unibody

[Captainfab]

Yes a P30 front suspension and crossmember will bolt right into your truck. As far as I know the C/P20 crossmember and control arms are the same as C/P30 crossmember and control arms.

Originally Posted by enonz65c30

Captinfab,

I figure worse case if the front crossmember is different. I was going to Atleast get the upper and lower control arms, hubs, calipers, steering linkage(leave the steering box) and sway bars. Then I would also not have to worry about the motor if I went that route. I have a lead on a c20 as well that I might steal the crossmember from. I also found a P30 in a junk yard with no motor or trans and missing the spindles. Would a p30 crossmember fit? It has frame rails like a c30 not unibody