'70 1 ton disk brakes

[chopttop]

I have a '70 C30 cab/chassis w/a Franklin motorhome on the frame, don't use it as much as I like cause of the drums. Decided that I am going to put disks on the front this winter. Been doing a quite a bit of reading and sounds like purchasing a complete cross member from a '73 - 87 C30/C20 and rebuilding it as necessary, would be the way to go. Read somewhere that the dually fronts were a little wider to match the rears, would getting a front off a C20 matter that much ? Would like to lower it a bit but doesnt seem that their is much out their and don't think I want to go the cost to bag it. So swapping out crossmembers sounds like the way to go. Any input on lowering or anything concerning this project would be appreciated.

[SCOTI]

You could swap the entire x-member from a later C30 or just swap the parts to your existing x-member. C20 stuff is the same w/o the Xtra HD brake hub/rotor.

Lowering the front is simple if swapping the parts. Western Chassis & Bell Tech offer 3" drop spindles that give you the drop w/o compromising ride quality or geometry vs. stock height.

[chopttop]

I am kind of leaning towards swapping x members, have been watching Craigs list, havn't checked out any salvage yards yet, for later model C30/C20's, acouple on their now w/454's and turbo 400's in the $1,000 range, has a 350 now, a little xtra power would be great, thanks for your reply. Do you have an idea of what a person could expect to pay for a x member ?

[SCOTI]

Originally Posted by chopttop

I am kind of leaning towards swapping x members, have been watching Craigs list, havn't checked out any salvage yards yet, for later model C30/C20's, acouple on their now w/454's and turbo 400's in the $1,000 range, has a 350 now, a little xtra power would be great, thanks for your reply. Do you have an idea of what a person could expect to pay for a x member ?

'Loaded' x-members (all parts hub to hub) for a 1/2 ton range from $100-200; expect that higher end for 3/4 thru 1-ton stuff. A good idea is to keep checking Craigslist for someone trashing a 3/4 ton Burb. Get what you need & part the rest (bunch of guys buy the doors for crew-cab trucks).

[chopttop]

Originally Posted by SCOTI

'Loaded' x-members (all parts hub to hub) for a 1/2 ton range from $100-200; expect that higher end for 3/4 thru 1-ton stuff. A good idea is to keep checking Craigslist for someone trashing a 3/4 ton Burb. Get what you need & part the rest (bunch of guys buy the doors for crew-cab trucks).

Thanks, so Burbs go pretty much the same way, '73 - '87 for interchangability on x-members ?