I'll second Alvins comments.
There's 'surgery' involved in the conversion,and IMO the aftermarket kits don't even come close to the original set-up.

Best to keep an eye open for complete 'factory' one piecers.
That way you get all the correct parts etc.

1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.