Time for a new post!!

DMiller

Active member
BILs old C70 is tired and rusted and driving me nuts. Dragged it out of the weeds last week, started chasing no start, led to eaten fuel hose then a rusted off stand pipe. Next up brake fluid dribbling down frame in three spots and power steering gear is running a pencil lead stream. Mind you I have replaced radiator, worked on rusted off brake tubing and overhauled the 4bbl governor holley twice over six years. Sitting is destroying it faster than anything. Had decided WTH time to pack it up, but the 366 still runs well when dribble gas down the throats, has a eaten up crash box 5 speed I believe is Clark with at least have the syncros bad and the 2 speed in non functional. Left door, door glass regulator and seat are trash as well no rockers nor floor pans left in old cab.

Called local yard and they have a few cabs to peruse which I will do tomorrow. May just get the wife or neighbor to aid me in dragging it up to the shop so can get a start on it. 5 or 6 yard bed needs a floor, some side reinforcements and some zippering welds redone and cab guard reconfigure but hoist itself is strong and functions smooth, Belt driven pump where can be a little odd at first but can use hydraulics with clutch disengaged and in gear. It AIN'T Purty. These were taken Four years ago. Can change the frame mount gas filter thru cab floor as well drop a basketball thru it never hit a edge.

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DMiller

Active member
Donor machine is aligning, just gonna be awhile to get it here, may end up disassembling this rust bucket to see if anything is salvageable. Have to get the shop cleaned up and cleared out.
 

DMiller

Active member
Figured to get a little ahead of myself, not happening. Made up a temporary fuel pump system to scab onto the BILs Chevy, load that and tools in the GMC I completed this winter. RF Brake dragging severely so tractor out of shop, grain truck in as have new brake wheel hoses for the truck bought a few months back. Tires off RF caliper locked up, get that at a hold point and take LF down, one piston in it has not ever extended, time for both. Parts ordered local parts house, back on it in morning.
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DMiller

Active member
Calipers and wheel hoses went on last night after dinner, should pick up the pads about half an hour IF They came in. Replacement calipers are coated appears a powder coat of some kind, reminds me of Rattle Can Aluminum or Chrome Wheel paint but seriously Harder.
 

Steve Frazier

Founder
Staff member
I've never seen disc brakes, I've been away from trucking since '97. Most I've read about were air over hydraulic but these look like they might be direct air?
 

DMiller

Active member
GM and Ford started Hydraulic Disc on the medium chassis lines back in the 80s, this being a '85, Bendix, Hydroboost combination Vacuum with p/s fed hydraulic boost. First few years they would eat pads, calipers would seize in slides, couple system updates/improvements and then piston failures, rotor failures, MORE improvements and updates where GM still uses a similar system on the 5500 series up.

More problematic than corrective for the old drum systems but can actually get these apart when self destruct unlike the old Drum systems that would seize up adjusters and had to destroy drums or shoes to remove even as really made no difference as were junk by then anyway!!
 
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