C30 disk brake swap questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Captainfab** · 12-12-2013, 01:45 AM

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.

12-12-2013, 01:45 AM	#8
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,254	Re: C30 disk brake swap questions 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. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.