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WTB Long Neck Diff in 3.90 ratio

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Looking for a long neck diff in 3.90. Some of the NK cars were equipped with one along with some of the 1600 ti cars. Some of you guys in Europe may have one laying around. Schimmer tuning in Germany had the long neck available in every imaginable ratio, but Schimmer has been long gone.

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As far as the source of these diffs from NK cars:


The standard 1800 was equipped with the 4.22 diff while the 1800ti got the 4.11 or 3.89 (3.90).


The 2000 was equipped with the 4.11 diff


The 2000ti and 2000tii were equipped with the 3.90 diff

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