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Thanks Beep, like I said 70 to 72 b body show the part number but 71 to 74 b body are different length. What am i missing? Shouldnt 71 to 74 b body dana have its own number?

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71-72 B body
3.54 Trac-Lok Bill of Materials 603222-1, -2
4.10 Trac-Lok Bill of Materials 603222-3
57 ins


1970 b-body
3.54 Powr-Lok Bill of Materials 603109-1, -2
4.10 Powr-Lok Bill of Materials 603109-3, -5
54ins
68-69 B body
3.54 Powr-Lok Bill of Materials 602957-1, -2, -3, -4
4.10 Powr-Lok Bill of Materials 602957-5,

66-67 dana 60 are 602829-1

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Now that makes a little more sense but according to BeepBeeps list the part number for 70 b body dana and 70 72 have the same number?
Whats up with that? How can 70 to 72 have the same part number?

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