[El Dorado Jim]

if you have a chance to buy both tanks, do it, they are hard to find and you can always sell it down the road if you don't want it...I would install both saddle tanks and get rid of the cab tank....I did that on my 72 and my son's 70... make sure the c10 tanks will fit on your K10, I think the K truck tanks have a notch/corner cut off to make room for the leaf spring mount.....I'm not sure though