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SVT Shelby GT500
5th gear lockout above 100mph?
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<blockquote data-quote="SCGallo2" data-source="post: 16413335" data-attributes="member: 160791"><p>I think me32 is on to something with entire drivetrain alignment. My issue with 5th gear lockout is documented here: <a href="https://www.svtperformance.com/threads/revan-racing-shifter-bushings-vs-mgw-gen2-shifter.1130060/page-2#post-15891673" target="_blank">https://www.svtperformance.com/threads/revan-racing-shifter-bushings-vs-mgw-gen2-shifter.1130060/page-2#post-15891673</a></p><p></p><p>In Spring 2019, I installed custom k-member and transmission cross brace spacers, to lift the body approximately 1/4" to adjust my front end ride height. I squared everything up and tweaked the suspension alignment front to rear. Then I replaced the transmission fluid with Mobil 1 ATF: <a href="https://www.svtperformance.com/threads/motive-power-fill-for-transmission-fluid.1173689/#post-16179763" target="_blank">https://www.svtperformance.com/threads/motive-power-fill-for-transmission-fluid.1173689/#post-16179763</a></p><p></p><p>Since that time, my high rpm 5th gear lockout is completely gone, slips right in silky smooth with no change in my shifting technique. I do clutch during shifts like an average person, no speed shifting in my car. I believe the drivetrain alignment has more to do with it than the Mobil 1 ATF, but for what it's worth, my transmission never shifted smoother, and even cold start first shift to second gear in cold weather has less drama.</p><p></p><p>For the power level it has to put up with, I am pretty happy with my TR6060.</p></blockquote><p></p>
[QUOTE="SCGallo2, post: 16413335, member: 160791"] I think me32 is on to something with entire drivetrain alignment. My issue with 5th gear lockout is documented here: [URL]https://www.svtperformance.com/threads/revan-racing-shifter-bushings-vs-mgw-gen2-shifter.1130060/page-2#post-15891673[/URL] In Spring 2019, I installed custom k-member and transmission cross brace spacers, to lift the body approximately 1/4" to adjust my front end ride height. I squared everything up and tweaked the suspension alignment front to rear. Then I replaced the transmission fluid with Mobil 1 ATF: [URL]https://www.svtperformance.com/threads/motive-power-fill-for-transmission-fluid.1173689/#post-16179763[/URL] Since that time, my high rpm 5th gear lockout is completely gone, slips right in silky smooth with no change in my shifting technique. I do clutch during shifts like an average person, no speed shifting in my car. I believe the drivetrain alignment has more to do with it than the Mobil 1 ATF, but for what it's worth, my transmission never shifted smoother, and even cold start first shift to second gear in cold weather has less drama. For the power level it has to put up with, I am pretty happy with my TR6060. [/QUOTE]
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SVT Shelby GT500
5th gear lockout above 100mph?
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