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The 4R70W transmission is a four-speed automatic gearbox that originated from Ford's long line of reliable and performance-oriented transmissions. It was first introduced in the mid-1990s and has since gained a solid reputation among car enthusiasts and everyday drivers alike. If you’re considering purchasing a 4R70W transmission, understanding its features, benefits, and where to find one for sale can help you make an informed decision.


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The second number, 65, represents the aspect ratio of the tire. This ratio is a percentage that describes the height of the tire's sidewall relative to its width. Specifically, the sidewall height is 65% of the tread width. For the 285/65R20 tire, the sidewall height would be approximately 185mm (calculated as 285mm x 0.65). A higher aspect ratio usually indicates a taller sidewall, which can improve ride comfort and absorb shocks from uneven terrain. However, it may also lead to less precise handling compared to tires with a lower aspect ratio.


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