<div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Hi,</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">The steering shaft on the TR6 is 9/16" - 36 spline.</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Most of the adapters for quick release are for 3/4" shafts</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">I'm pretty sure that Grant used to offer adapters for British cars, but the last few times I looked the parts are not listed. I don't recall a quick release adapter from when I used to install Grant steering wheels on a few cars back in the '90s. Maybe if you find an abandoned project with a Grant wheel you could do something, but Grant used a different bolt pattern for the spokes than most of the others like Moto-Lita etc.</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Really the only way to get what the query seems to want is to install a 3/4 upper shaft with the quick release and then adapt to the 9/16-36. You would have to re-bush the stock steering column for the larger shaft and you would loose turns signal cancel and the steering shaft lock if this is a street car.</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">This is why most race cars switch to the larger shafts, but you probably already know that.</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div><div style="font-family: Arial, sans-serif; font-size: 14px;">Regards,</div><div style="font-family: Arial, sans-serif; font-size: 14px;"><br></div>
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On Thursday, August 13th, 2026 at 11:56 AM, Dave Riddle <dave@microworks.net> wrote:<br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">A local Member asked a question that maybe FOT can answer</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Dave Riddle</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">602.692.5276</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> </span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <a href="mailto:members@dctra.org" rel="noreferrer nofollow noopener">members@dctra.org</a> <<a href="mailto:members@dctra.org" rel="noreferrer nofollow noopener">members@dctra.org</a>>
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<b>Sent:</b> Wednesday, August 12, 2026 7:44 PM<br>
<b>To:</b> DCTRA <<a href="mailto:members@dctra.org" rel="noreferrer nofollow noopener">members@dctra.org</a>><br>
<b>Subject:</b> [DCTRA] TR-6 steering shaft question</span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">Does anyone have a shaft out of the car to provide the following.</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">1) The number of splines.</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">2) The overall diameter.</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">We are trying to accommodate a quick release hub without welding it to the shaft.</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">The factory is checking their archives to see what was available in the 70's.</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">Thanks for any help provided.</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif">Ken Schmidt</span></p>
<p class="MsoNormal"><span style="font-family:"Helvetica Neue",serif"> </span></p>
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