Heres my situation.I have a 2007 Mustang GT. Its a 5-speed manual with a 12mm x1.25 thread pattern on the shifter. I purchased a Hurst Classic style shift knob stupidly in a 12mm x 1.75 thinking at the time thats what the correct size was(also after contacting Hurst i found out they do not make a shift knob to fit the newer Mustangs yet). So not being the correct size i went out to Car Quest and i bought 12mm x 1.25 helicoils, i didnt opt for the whole kit being that it was just about $100.00 and i didnt want to spend more than 3 times the shift knobs cost on trying to make it fit to me thats just silly lol. So anyway to make a long story short the Helicoils that i bought do not tell me the drill size or tap size....so i was wondering if anybody knows what the correct size would be. Thanks in advance!!!
Help with fitting my shift knob on my 07 Mustang GT
- Thread starter Srt2Stang725
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I seem to be having a bit of trouble finding the 12x1.25 size. here are a few links that I looked on
http://www.newmantools.com/tapdrill.htm
http://www.engineersedge.com/manufacturing/metric-iso-tap-drill-chart.htm
If for nothing else they make a great future refence. I will keep digging though. The first site did have this qoute though;
"For Metric sizes only. Diameter of thread minus the pitch equals the tap drill size.
eg. M6 x 1 6 - 1 = 5mm and you thought metric was difficult."
Buy this I would say you need a drill that is 10.75mm best of luck.
http://www.newmantools.com/tapdrill.htm
http://www.engineersedge.com/manufacturing/metric-iso-tap-drill-chart.htm
If for nothing else they make a great future refence. I will keep digging though. The first site did have this qoute though;
"For Metric sizes only. Diameter of thread minus the pitch equals the tap drill size.
eg. M6 x 1 6 - 1 = 5mm and you thought metric was difficult."
Buy this I would say you need a drill that is 10.75mm best of luck.
Just crank it on there. Might take a lot of work, but it'll fit.
Just kidding, please don't do that. Your best option, to get the best looking setup would be to sell that ball and replace it with one made for the stock stick (MRT makes quite a few classic balls, and Roush has a couple), or upgrade your shifter. Most shifters out there give you the option to keep the stock threads, or go more universal.
Just kidding, please don't do that. Your best option, to get the best looking setup would be to sell that ball and replace it with one made for the stock stick (MRT makes quite a few classic balls, and Roush has a couple), or upgrade your shifter. Most shifters out there give you the option to keep the stock threads, or go more universal.
CRoberts91
Member
I purchased the Roush Retro black ball knob yesterday, I'll let you know how it works out, good look on your situation.
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