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Old 05-07-2006, 02:09 PM
72Challenger 72Challenger is offline
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Join Date: Nov 2000
Location: Mission Viejo CA USA
Posts: 2,538
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It is very easy to tell these apart. Measure the driveshaft INSIDE the yoke, or if you're looking at the bare u-joint, measure the distance between the keeper grooves, just inside the cups. The 7260 will be 2 1/8", the 7290 will be 2 5/8".

Cars without a Dana 60 did indeed use both of these joints. If you have a Dana 60, which does NOT use either of these u-joints, you will have a 1300 series u-joint.
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