12 bolt econo/comp mw s 12 bolt econo/comp modular alu93012 modular 12 bolt econo/comp assembly minum housing is ideal for many dragster/altered applications the center casting is only 14 wide when used with standard end bells the housing width is 24 this gives a wheel to wheel width of 30 1/8 allowing for the narrow rear tread width that is popular today with a number of dragster chassis builders it is also possible to purchase housings either narrower or wider this is easily done through the use of different end bells the 12 bolt ring and pinion has also become popular due to its reduced internal friction this improved efficiency frees up horsepower and becomes more beneficial in light weight cars or lower horsepower cars a new addition to our modular 12 bolt line is the econo/comp 4 link housing shown at left it incorporates special chromoly 4 link brackets and spacers along with a tubular lower tie bar these new components make it easier than ever to convert a mw modular solid
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