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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: 12475831" data-attributes="member: 83412"><p>And the failures...</p><p></p><p>[ATTACH=full]400377[/ATTACH]</p><p></p><p>[ATTACH=full]400378[/ATTACH]</p><p></p><p>[ATTACH=full]400379[/ATTACH]</p><p></p><p>And an early Ford 6060 (Harleydealer?) failure...</p><p></p><p>[ATTACH=full]400380[/ATTACH]</p><p></p><p>There has been documented legal action taken with respect to failed 6060/shafts. A bit beyond the scope here. Suffice it to say, I don't plan on changing the shaft on mine but would like to reduce weight and the forces imparted on the failed areas if possible.</p><p></p><p><strong>What Was Changed For 2013?</strong></p><p></p><p>Aside form internal/external changes that strengthened the 6060, the critical difference was the move to a dished or 'cup' style flange along with the necessity for an increase in splines. I did a side by side with an early ('07-'09) flange next to the '13 flange...</p><p></p><p>[ATTACH=full]400381[/ATTACH]</p><p></p><p>[ATTACH=full]400382[/ATTACH]</p><p></p><p>[ATTACH=full]400383[/ATTACH]</p><p></p><p>[ATTACH=full]400384[/ATTACH]</p><p></p><p>[ATTACH=full]400385[/ATTACH]</p><p></p><p>Note the CV joint at the transmission end (also the 'plunge' end)of the CF shaft and you can see why a cup is necessary...</p><p></p><p>[ATTACH=full]400386[/ATTACH]</p><p></p><p>[ATTACH=full]400387[/ATTACH]</p><p></p><p>[ATTACH=full]400388[/ATTACH]</p><p></p><p><strong>So How Can A 2013 CF Shaft Be Retrofitted To An Earlier GT500?</strong></p><p></p><p>You can either whip up a cup style flange that mimics the shape of the factory '13 unit that utilizes the early spline count or sandwich an adapter in between the earlier flanges and the newer shaft. I had seen some GM adapters made before...</p><p></p><p>[ATTACH=full]400389[/ATTACH]</p><p></p><p>[ATTACH=full]400390[/ATTACH]</p><p></p><p>As well as aftermarket companies that do similar things to get their shafts (CF, aluminum etc) to fit...</p><p></p><p>[ATTACH=full]400391[/ATTACH]</p><p></p><p>Justin at VMP offers a CF shaft that bolts <em>directly</em> to the factory fixed flange...</p><p></p><p>[ATTACH=full]400392[/ATTACH]</p><p></p><p>But those are outside the scope I'm considering here. I'd like to stay with the factory, OEM shaft. That's why I started looking into how it could be done. And it hasn't been easy.</p><p></p><p>Tremec offered little to nothing in terms of data or help here. VERY secretive and tight lipped. FRPP has yet to make the leap. And while I have longed for them to do it for some time now, they simply haven't. Maybe they'll surprise everyone with a catalog update that includes a retrofit kit. Maybe not. I don't want to wait anymore, so I contacted a highly skilled individual with the capacity and capability to make it happen. After discussing the matter with him, he suggested the adapter 'route.' We discussed using 6061 aluminum or chromoly as well as using the '10-'12 fixed flange. He's busy with a couple of projects until somewhere Christmas time so we've agreed to wait until then. In the meantime, I'm procuring a '13 shaft as well as a '10-'12 flange.</p><p></p><p>So my jaw about dropped the other day when <em>blackshelby</em> posted up that "The trans/driveshaft Mod is not that hard to do at all" and uploaded the following photo...</p><p></p><p>[ATTACH=full]400393[/ATTACH]</p><p></p><p>He further stated...</p><p></p><p></p><p></p><p>That confirmed a lot. That there was ample plunge and no vibration. I'm still uncertain as to the rear (pinion) flange as I have noticed some minor dimensional changes on the '13 car. But if has done it he can probably comment on that as well. So it'll be a bit, but I'm working on it - as apparently so have others.</p></blockquote><p></p>
[QUOTE="Tob, post: 12475831, member: 83412"] And the failures... [ATTACH=full]400377[/ATTACH] [ATTACH=full]400378[/ATTACH] [ATTACH=full]400379[/ATTACH] And an early Ford 6060 (Harleydealer?) failure... [ATTACH=full]400380[/ATTACH] There has been documented legal action taken with respect to failed 6060/shafts. A bit beyond the scope here. Suffice it to say, I don't plan on changing the shaft on mine but would like to reduce weight and the forces imparted on the failed areas if possible. [B]What Was Changed For 2013?[/B] Aside form internal/external changes that strengthened the 6060, the critical difference was the move to a dished or 'cup' style flange along with the necessity for an increase in splines. I did a side by side with an early ('07-'09) flange next to the '13 flange... [ATTACH=full]400381[/ATTACH] [ATTACH=full]400382[/ATTACH] [ATTACH=full]400383[/ATTACH] [ATTACH=full]400384[/ATTACH] [ATTACH=full]400385[/ATTACH] Note the CV joint at the transmission end (also the 'plunge' end)of the CF shaft and you can see why a cup is necessary... [ATTACH=full]400386[/ATTACH] [ATTACH=full]400387[/ATTACH] [ATTACH=full]400388[/ATTACH] [B]So How Can A 2013 CF Shaft Be Retrofitted To An Earlier GT500?[/B] You can either whip up a cup style flange that mimics the shape of the factory '13 unit that utilizes the early spline count or sandwich an adapter in between the earlier flanges and the newer shaft. I had seen some GM adapters made before... [ATTACH=full]400389[/ATTACH] [ATTACH=full]400390[/ATTACH] As well as aftermarket companies that do similar things to get their shafts (CF, aluminum etc) to fit... [ATTACH=full]400391[/ATTACH] Justin at VMP offers a CF shaft that bolts [I]directly[/I] to the factory fixed flange... [ATTACH=full]400392[/ATTACH] But those are outside the scope I'm considering here. I'd like to stay with the factory, OEM shaft. That's why I started looking into how it could be done. And it hasn't been easy. Tremec offered little to nothing in terms of data or help here. VERY secretive and tight lipped. FRPP has yet to make the leap. And while I have longed for them to do it for some time now, they simply haven't. Maybe they'll surprise everyone with a catalog update that includes a retrofit kit. Maybe not. I don't want to wait anymore, so I contacted a highly skilled individual with the capacity and capability to make it happen. After discussing the matter with him, he suggested the adapter 'route.' We discussed using 6061 aluminum or chromoly as well as using the '10-'12 fixed flange. He's busy with a couple of projects until somewhere Christmas time so we've agreed to wait until then. In the meantime, I'm procuring a '13 shaft as well as a '10-'12 flange. So my jaw about dropped the other day when [I]blackshelby[/I] posted up that "The trans/driveshaft Mod is not that hard to do at all" and uploaded the following photo... [ATTACH=full]400393[/ATTACH] He further stated... That confirmed a lot. That there was ample plunge and no vibration. I'm still uncertain as to the rear (pinion) flange as I have noticed some minor dimensional changes on the '13 car. But if has done it he can probably comment on that as well. So it'll be a bit, but I'm working on it - as apparently so have others. [/QUOTE]
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Retrofitting a '13 GT500 carbon fiber driveshaft to an '07-'12 GT500
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