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Old 06-26-2008, 10:20 AM
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Good differential for Mazda rotary pickup?

My dead 74 is due for an engine swap (thinking V6 and 2004-R), but the 4.625 gears are way too steep, even with OD. 3.9s were made in the last year or so of production (about 1977-- all crushed by now?), but I'd prefer around 3.25- 3.5 due to the small tires.

Anyone know of a good 6 bolt on 5.5" diff to swap in, or one which may be readily narrowed? (Rear track is only 56" ).


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