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eliminating the iso-clamp setup and retaining the stock 7 1/4" axle is a waste of time. if you want to eliminate it, get an 8 3/4 or 8 1/4 out of a '68-70 B body, spring centering bolt and U bolts for the same, and the associated shock plates. it'll pretty much bolt right up.
valid up 72s
No, '71 up rears are 3" wider (64" vs 61") and perches are 3" (47" vs 44") further apart. '68-70 rears are within 1/2" for both measurements as an F/M/J rear (~61" wide, 44.46" perch width).
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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