| MacPherson strut |
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| A combined damper(shock absorber) and spring unit.MacPherson struts also allow relatively long springs that can increase suspension travel and increase bump absorption capability.
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| Main Bearings |
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| The bearings in an engine block that support the crankshaft.
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| Make |
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| Brand name of a car or truck (ie. Chevrolet, Ford, Dodge, Honda).
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| Manual Transmission |
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| A mechanism in the drive train with gears to vary the power and torque delivered to the driven wheels. It consists of a lever that the driver operates in conjunction with the clutch to change from one gear to another.
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| Manufacturer`s Suggested Retail Price (MSRP) |
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| Margin or gross margin the return an intermediary achieves on the selling price of the article. That is, if the intermediary buys a product for $1 and sells it for $1.50, the margin is calculated. For example, .50 divided by $1.50, or 33%.
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| Market Share |
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| The percentage of total sales represented by an individual manufacturer/importer, make or nameplate.
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| Mechanic Installed Market (MIL) |
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| Vehicle maintenance and repair conducted by a mechanic/professional at a service outlet.
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| Medium-duty Truck |
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| Vehicle weighing from 14,001 to 26,000 lbs. |
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| Metal Forming |
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| Solid metal and molten metal process such as casting, forging, stamping and machining. |
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| Methylcyclopentadienyl Manganese Tricarbonyl (MML) |
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| MMT is an organic manganese compound. It is used as a fuel additive designed to enhance octane levels in gasoline.
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| Mid-engine |
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| A chassis layout that positions the engine behind the passenger compartment but ahead of the rear axle.
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| Multi-link Suspension |
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| A rear suspension consisting of at least four links, or "arms," and no struts. Because multilink suspensions assign specific wheel-locating duties to each element, they provide great flexibility for optimizing both ride and handling.
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