So, you have the 3/4 ton, tapered hole, multi-piece tie-rod ends on your truck now, and you bought straight shank, one piece replacement type tie-rods.

Your question is, will the 1/2 ton truck steering arms fit the 3/4 ton truck without effecting the steering geometry? Do you have the 1/2 ton steering arms?

Your options are to replace the ball ends with those listed above in Tim's post and find replacement tie-rod housings, springs, and cups due to yours being cut up and modified. Or, make steel, tapered bushings with straight shank centers to use the parts you bought for the steering arms you have.

Is that about right?