March 14th, 2021, 09:14 PM
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Senior Member
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Join Date: Sep 2013
Location: Orient, Oregon
Truck: '63 K1000, '66 C4000
Age: 65
Posts: 120
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 103
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Re: Pics wanted: under dash and firewall
Hey there TJ.
I'm not close to my 63 right now but I'm thinkin that mystery hole under yer master cyl is for the oil pressure line to the gauge. (Wet gauge)
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