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SVT Shelby GT500
What gear ratio would you pick?
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<blockquote data-quote="Mock4147" data-source="post: 15554123" data-attributes="member: 179593"><p>I just installed the new vmp gen IIR on my 1967 f100 truck with a 2007 gt500 engine and trans. Working on the tuning with vmp now as soon as it is done I would like to change out my rear end gear ratio. The truck has a IRS out of a 2004 mustang cobra when I bought the IRS it had 4:10 gears but what I don't like is at 75mph on the freeway it is at 3400rmp in 5th so I want to shift in to 6th and when I do the rpms are at 1900. I will be driving the truck mostly as a daily driver in the summer month and going to track 1-2 time a month to have some fun. I was wondering if I should go with 3:73 or 3:55 gears </p><p></p><p></p><p>Sent from my iPhone using the <a href="http://r.tapatalk.com/byo?rid=92568" target="_blank">svtperformance.com mobile app</a></p></blockquote><p></p>
[QUOTE="Mock4147, post: 15554123, member: 179593"] I just installed the new vmp gen IIR on my 1967 f100 truck with a 2007 gt500 engine and trans. Working on the tuning with vmp now as soon as it is done I would like to change out my rear end gear ratio. The truck has a IRS out of a 2004 mustang cobra when I bought the IRS it had 4:10 gears but what I don't like is at 75mph on the freeway it is at 3400rmp in 5th so I want to shift in to 6th and when I do the rpms are at 1900. I will be driving the truck mostly as a daily driver in the summer month and going to track 1-2 time a month to have some fun. I was wondering if I should go with 3:73 or 3:55 gears Sent from my iPhone using the [url=http://r.tapatalk.com/byo?rid=92568]svtperformance.com mobile app[/url] [/QUOTE]
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SVT Shelby GT500
What gear ratio would you pick?
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