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Old 07-12-2009, 12:04 AM   #10
USSkoval
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Join Date: Jul 2009
Location: West Jefferson, OH
Posts: 999
Re: Factory 3/4t Dually???

IIRC, the perch spacing on a 1ton rear axle (and 3/4, crew cab ONLY) is 40.5, and 1/2 and 3/4ton are 42.5. A 1ton also got rear shocks inboard of the frame rails, and they are staggered on the opposite sides as 3/4. Look for perches and shock mounts that have been relocated on the axle, and also spring hangers and upper shock mounts that are bolted on (or welded, I suppose).
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