Astro Performance T5 Manual Transmission - Standard Shifting Procedures
To make sure Stolen Goods' rpm doesn't drop significantly while speeding down the back straight, Astro Performance used its upgraded 9310 alloy steel 0.79 percent Fifth gear. Another option, though not as strong, reuses the factory Fifth-gear kit from an '85-'95 Mustang 5.0L, to achieve a 0.59 percent Overdrive, which is a bit more fuel efficient than the OEM 0.68 percent.
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