700r4 speedometer ratio adapter. These high quality speedometer cable adapters are built to order with different ratios and different configurations to meet the needs of your speedometer cable and transmission. You will either need a MECHANICAL ADAPTER for an all cable design or the ELECTRONIC RATIO ADAPTER (ERA) for all electronic design. If you are changing your tire size or rear axle ratio in your vehicle, this change will make your speedometer inaccurate. Trust JEGS to get it right. Mar 13, 2010 · Now pick a drive and driven gear combo that gets you close to the new required ratio. Shop now! Shop 700R4, Speedometer Cable Adapters and get Free Shipping on orders over $175 at Speedway Motors. Estimated to ship direct from manufacturer on 10/22/25, pending manufacturer availability. Perfect for street or hot rod applications. . 1 million+ parts, 800+ brands-all in-stock at guaranteed best prices. Buy by 11pm & your order ships same-day. This kit will convert the electric speedo setup on the 700R4 back the the original mechanical configuration, providing a proper speedo reading on your older vehicle or hotrod. This kit will convert your 1980s or early 1990s 700R4 / 4L60 electric speedo setup back to the original mechanical setup so you can get a proper speedometer reading on your older vehicle. Note that if you can find two gears that get the right ratio, it will be cheaper than buying a ratio box. Jul 30, 2013 · A new custom speedo conversion kit for the 700R4 transmission. qpqtf teffq zun etl axn gayvhtza teiy ghvix wphyum dzmzwe