1972 3/4 4x4 rear end questions

[Seventy468]

Originally Posted by Vintage Windmills

Unless you are after a ratio other than 4.10 or 4.56, I'm curious why you are putting in a heavier, weaker, less convenient to work on (no 3rd member), and less ground clearance axle? Also, being a 72, you can still buy brake drums and shoes for it. You could convert your HO 52 to disc brakes with probably the same amount of work for 300 or so FYI.

I should have specified its a full floating corp 14. We run them behind 700 hp big blocks and rarely have issues, figured it could handle a 300 hp SBC on the street no problem. And as far as why not find a 72 axle instead of 79? Availability. Used to find 3/4 axle sets all day for $250, and then they all dried up. Got lucky enough to find a good 79 donor truck with 3/4 axles and jumped on it. Had I realized the 3/4 axles weren't all the same for 67-72 to the 73-87 I would have looked harder and would have most likely had to buy one out of state and have it shipped to me. Around here a 72 donor truck goes for $2-3500, which is out of the question. HO 52.. isn't that a 3/4 axle? Im going from 1/2 ton to 3/4, or 6 lug to 8 lug. Obviously I didnt do my homework well enough and now im paying for it with time and labor, no biggie. I'll also have to go back and double check the front end now also.