My 79 has a power steering gear in it(not factory installed), and I want to change it to manual steering. I have a manual steering gear, that I "think" will work, but I am not sure. The shaft for the column is the same diameter, and I think the shaft for the pitman arm is the same diameter(don't know if splines are correct for either). The numbers that I found on the gear housing are: 11, 5679142, 299. There is a number stamped in the gear housing: A3066. The numbers on the 3 bolt cover are: 286, 6723, 63. If anyone knows if this steering gear will work without any other parts, PLEASE let me know. Thank you in advance. Brad