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SVT Shelby GT500
Retrofitting a '13 GT500 carbon fiber driveshaft to an '07-'12 GT500
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<blockquote data-quote="Tob" data-source="post: 12690206" data-attributes="member: 83412"><p>Excellent question. One that I discussed with Tom. The '07-'12 bolts at the transmission flange were part #HB2 and there were four of them (and there were six #HB2's at the pinion flange). The '13 uses #4B496 and there are six of them at the transmission flange and six of them at the pinion flange. Whats the difference? The '07-'12 uses less bolts (four versus six) at the transmission but they were larger than what the '13 uses.</p><p></p><p>HB2's measure M12 X 1.75 X 27.0</p><p>4B496's measure M10 x 1.5</p><p></p><p>2007-2012 shaft/bolts...</p><p></p><p>[ATTACH=full]423405[/ATTACH]</p><p></p><p>2013 shaft/bolts...</p><p></p><p>[ATTACH=full]423406[/ATTACH]</p><p></p><p>In essence, the bolts that will go through the rear face of the '07-'12 flange are smaller than what Ford used to secure the OEM 2 piece shaft and U-joint from the front. But there will be <em>8 M10 x 1.5 socket headed cap screws</em> used on the adapter flange...</p><p></p><p>[ATTACH=full]423407[/ATTACH] </p><p></p><p>Since these are smaller than the drilled/tapped holes in the original fixed flange they won't be engaging those threads. They are 12.9 class cap screw with a tensile strength of 174,000 psi (specs were listed in a previous post). The torque spec should come in ~ 62 ft-lbs (highlighted)...</p><p></p><p>[ATTACH=full]423408[/ATTACH]</p><p></p><p>I also intended to use these bolts through the CV joint side...</p><p></p><p>[ATTACH=full]423409[/ATTACH]</p><p></p><p>A shouldered socket headed cap screw (no zinc coating). I found that the shoulder interfered with the CV joint body so I can't use them. So today I stopped by <em>Fastenal</em> and ordered some M10 x 1.5 x 50 (under head length) 12.9 class zinc plated socket head cap screws to use in their place. Much better for corrosion than the simple black oxide.</p><p></p><p>The cap screws that will run backwards through the fixed flange will be secured with <a href="http://tds.loctite.com/tds5/docs/263%20NEW09-EN.PDF" target="_blank">Loctite 263...</a></p><p></p><p>[ATTACH=full]423410[/ATTACH]</p><p></p><p>ON EDIT...</p><p></p><p>You nailed it brother.</p></blockquote><p></p>
[QUOTE="Tob, post: 12690206, member: 83412"] Excellent question. One that I discussed with Tom. The '07-'12 bolts at the transmission flange were part #HB2 and there were four of them (and there were six #HB2's at the pinion flange). The '13 uses #4B496 and there are six of them at the transmission flange and six of them at the pinion flange. Whats the difference? The '07-'12 uses less bolts (four versus six) at the transmission but they were larger than what the '13 uses. HB2's measure M12 X 1.75 X 27.0 4B496's measure M10 x 1.5 2007-2012 shaft/bolts... [ATTACH=full]423405[/ATTACH] 2013 shaft/bolts... [ATTACH=full]423406[/ATTACH] In essence, the bolts that will go through the rear face of the '07-'12 flange are smaller than what Ford used to secure the OEM 2 piece shaft and U-joint from the front. But there will be [I]8 M10 x 1.5 socket headed cap screws[/I] used on the adapter flange... [ATTACH=full]423407[/ATTACH] Since these are smaller than the drilled/tapped holes in the original fixed flange they won't be engaging those threads. They are 12.9 class cap screw with a tensile strength of 174,000 psi (specs were listed in a previous post). The torque spec should come in ~ 62 ft-lbs (highlighted)... [ATTACH=full]423408[/ATTACH] I also intended to use these bolts through the CV joint side... [ATTACH=full]423409[/ATTACH] A shouldered socket headed cap screw (no zinc coating). I found that the shoulder interfered with the CV joint body so I can't use them. So today I stopped by [I]Fastenal[/I] and ordered some M10 x 1.5 x 50 (under head length) 12.9 class zinc plated socket head cap screws to use in their place. Much better for corrosion than the simple black oxide. The cap screws that will run backwards through the fixed flange will be secured with [URL="http://tds.loctite.com/tds5/docs/263%20NEW09-EN.PDF"]Loctite 263...[/URL] [ATTACH=full]423410[/ATTACH] ON EDIT... You nailed it brother. [/QUOTE]
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Retrofitting a '13 GT500 carbon fiber driveshaft to an '07-'12 GT500
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