THE '72-AND-EARLIER MODELS WITH REAR COIL SPRING SUSPENSION USE A LATERAL PANHARD BAR THAT LOCATES THE REAR AXLE BETWEEN THE FRAME RAILS; THIS WILL ALSO BE REPLACED WITH A NEW ECE ADJUSTABLE MODEL.  THE REAR BRAKE HOSE AND PARKING BRAKE CABLES ARE DISCONNECTED TO ALLOW THE REAREND TO BE REMOVED AS A COMPLETE UNIT.


THE REAR COIL SPRINGS MOUNT BETWEEN THE TRAILING ARM AND THE BOTTOM OF THE FRAME, AND ARE HELD IN PLACE WITH A SIMPLE SPRING CUP ON BOTH ENDS.


THE ECE REAR AIRBAG ASSEMBLIES MOUNT TO THE FRAME USING THE ORIGINAL UPPER SPRING HOLES, BUT THE DIAMETER NEEDS TO BE ENLARGED TO 3/4-INCH FOR THE AIRBAG'S TOP MOUNTING STEM TO FIT THROUGH.  CAUTION: ALWAYS CHECK TO BE CERTAIN THAT ANY WIRING, BRAKE, OR FUEL LINES ARE NOT IN THE WAY BEFORE DRILLING INTO THE FRAME.


EARLY CLASSIC DESIGNED AN UPPER AND LOWER REAR SHOCK MOUNT BRACKET SET THAT CORRECTS THE SHOCK ANGLE BACK TO FACTORY SPECIFICATIONS.  THE ORIGINAL UPPER MOUNTS NEED TO BE REMOVED; THEY ARE RIVETED ON FROM THE FACTORY, SO YOU WILL NEED A CHISEL OR GRINDER TO GET THEM OFF.


THE NEW MOUNTS BOLTED BACK INTO THE SAME HOLES, SO DON'T USE A TORCH TO CUT OFF THE OLD ONES BECAUSE IT MIGHT MESS UP THE HOLES.  THE NEW LOWER MOUNTS WILL GO BACK ON THE BOTTOM OF THE TRAILING ARM LATER IN THE INSTALL.


A FIVE-LUG REAREND FROM A '72 C-10 WAS LOCATED AND PREPPED BEFORE INSTALLING BACK INTO THE SUBURBAN.  A 3:73 GEAR RATIO WAS SELECTED TO MATCH THE FUTURE OVERDRIVE TRANSMISSION AND 30-INCH TALL REAR TOYO TIRES.

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