Just updating this for anyone that was thinking on manual upgrading without trade in, GT72-6QD upgrade to GTX 1060 does work as i have done the MXM upgrade and using it right now.
MXM Card and GT72VR GPU Heatsink was all that was needed for mine as the connecting block from the GPU to the CPU was compatible.
It works well in the system, I have had only it once go over 100 watt during my benchmark runs but its now stays below 100 watts on the MXM slot with the Boost clock going upto 1911mhz.
Here is the Proof
CPU/GPUZ Screen Shot:
https://1drv.ms/i/s!As5OYvCszQehka4zlHySwthGXhLGTQ
3DMark FireStrike (Stock Fan Curve):
https://1drv.ms/i/s!As5OYvCszQehka4y_0Dpn5EMjgIF8w
3DMark TimeSpy (Stock Fan Curve):
https://1drv.ms/i/s!As5OYvCszQehka4tCiltJ41s3P7Umg
Heaven Benchmark (Stock Fan Curve):
https://1drv.ms/i/s!As5OYvCszQehka45olXxBWlc_tSe_w
Valley Benchmark (Stock Fan Curve):
https://1drv.ms/i/s!As5OYvCszQehka42sbvcW4r4rGWPdA
3DMark Vantage (Stock Fan Curve):
https://1drv.ms/i/s!As5OYvCszQehka4xrOpLMRtTc3diMw
CineBench R15 (Stock Fan Curve):
https://1drv.ms/i/s!As5OYvCszQehka4q7NqedIWeMF2jHA
To validate my claim here is my system info
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System Information
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Serial Number: 9S7178****48ZFA******
Product Name: GT72
OS: Microsoft Windows 10 Pro 64-bit
Windows Product Key: 3V66T
HDI Build: non-OEM
BIOS Version: E1782IMS.11D
BIOS Release Date: 2016/10/14
EC Version: 1782EMS1.1091106201514:23:24
CPU: Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
Memory: 32 GB @ 1066 MHz
- 8192 MB, DDR4-2133, SK Hynix HMA41GS6AFR8N-TF
- 8192 MB, DDR4-2133, SK Hynix HMA41GS6AFR8N-TF
- 8192 MB, DDR4-2133, SK Hynix HMA41GS6AFR8N-TF
- 8192 MB, DDR4-2133, SK Hynix HMA41GS6AFR8N-TF
Graphics: NVIDIA GeForce GTX 1060, 6144 MB
VBIOS Version: 86.06.1f.00.05
Network: Killer Wireless-n/a/ac 1535 Wireless Network Adapter
Network: Killer E2400 Gigabit Ethernet Controller