Here's what I did with my 147.
http://onlycubcadets.net/forum/showthread.php?t=26385
I use the stock headlights and taillights. I wanted another for the rear. Since I have a tiller mount, I used a bolt that was too high and mounted to that. The ground goes under the mount and the hot goes to a switch in the dash where the e-lift switch would be (I don't have the e lift I have a manual lift) then to a fuse then directly to the batt. The light has a quick connect - now insulated- because I take if off in the spring and re install before I need it in the winter. I got the light at O Reilleys- I think it was like 15 dollars.
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Daniel G.
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(May 1970) 147 w/an IH spring assist, 48" deck, 42" blade, 1969 73, #2 trailer, 10" Brinly plow and (on loan) Dad's #2 tiller.