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Special Interests and Events
Open Track Racing
BEST DIFFERENTIAL FOR OPEN TRACK/OCCASSION DRAG
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<blockquote data-quote="Coz" data-source="post: 16009119" data-attributes="member: 184704"><p>Is yours a Performance Package car? If so, you have the strongest Torsen made and will be great for the track and will stand up to occasional drag strip use.</p><p></p><p>If you have a base GT500 then upgrade to the Torsen. It is normally available as Ford Racing upgrade under P/N M-4204-MB and runs for about $900.00. However, the exact same differential is available as a replacement part under part number CR3Z-4026-A, also known internally as Torsen 409000-2170. The carrier is cast with #CR3W-4026-AB on it. This is available for about $750.</p><p></p><p>Before you go with the 3.73 gears you may want to check the road course track(s) you will most likely attend with your current 3.31s and see what gears you will be in during various portions of the track and how often you will be shifting. Also, what gear/rpm you're in at the end of the longest straight. A track app to record your speeds and rpms would be very helpful here. </p><p></p><p>Then see how that would translate if you had the 3.73 gears. You want to avoid having to go above 4th gear at wide open throttle. With 28" tires you're looking at 6700 rpm @ 150mph. This is above the normal redline for your GT500.</p></blockquote><p></p>
[QUOTE="Coz, post: 16009119, member: 184704"] Is yours a Performance Package car? If so, you have the strongest Torsen made and will be great for the track and will stand up to occasional drag strip use. If you have a base GT500 then upgrade to the Torsen. It is normally available as Ford Racing upgrade under P/N M-4204-MB and runs for about $900.00. However, the exact same differential is available as a replacement part under part number CR3Z-4026-A, also known internally as Torsen 409000-2170. The carrier is cast with #CR3W-4026-AB on it. This is available for about $750. Before you go with the 3.73 gears you may want to check the road course track(s) you will most likely attend with your current 3.31s and see what gears you will be in during various portions of the track and how often you will be shifting. Also, what gear/rpm you're in at the end of the longest straight. A track app to record your speeds and rpms would be very helpful here. Then see how that would translate if you had the 3.73 gears. You want to avoid having to go above 4th gear at wide open throttle. With 28" tires you're looking at 6700 rpm @ 150mph. This is above the normal redline for your GT500. [/QUOTE]
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BEST DIFFERENTIAL FOR OPEN TRACK/OCCASSION DRAG
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