Thanks! Do I need to change the steering box on the 77?No, the 77 and earlier had the gear box mounted at a different angle then the later ones.
M880, if you cannot locates one, I would consider swapping to the later style, it is a better bet that they will be available longer then the one you have. Looks like the interchange is 75 to 77, W100, W200, and 4wd ramchargers. I always thought it was 72 to 7, but Rock auto shows the 72 to 74 as different, not sure what is different, but they are out of them also, so who knows.
Yes, you would need the gear box, the steering arm, and the drag link from a 78 to 93, 4wd truck (1,2 3/4, or 1 ton), or RC.
Good catch, I was thinking about it, just forgot to type it all.don't forget the mounting plate
I knew that, but always thought the steering and drag link was the same.FWIW 72-74 front suspension was different in that the spring u-bolts pointed down, not up.
Not sure how this affected what steering components where used.
Bucky