My old axle is a 22K rated Spring Eaton axle. The new Rockwell is a 20K setup.
The vehicle has a GVW of 32,700 (it only weighs 13K)
The brakes on the new axle are exactly the same size as my old one.
Late last year I found a air ride rear axle and suspension for
$125 . It's out of a 92 freightliner and of course It will need
New air bags and shocks. Looks like I will have about
$450 in the setup.
This is the axle I bought.
I worked for about 8 hours cutting off the (21) 3/4 inch rivets
Holding the brackets to the frame.
Figured out this weekend that the gears are 4.10
I'll get it apart this week and see if the bearings are ok.
I have found a used 3.58 gear set for $307
This last winter I got a new set of air bags and Monroe shocks. After I get the one new brake drum All I'll need is to get is the gears installed in the pumpkin and I'll be ready to start the tear down, drilling and install.
last week I bought a brand new set of brake chambers. $38.50 each at Webb's truck parts.
I took the rails that came with the new axle and used them as a template to drill my Ford frame rails. Its working quite well. I got ahead of schedule on my drilling today but toasted all of the 5/8ths bits. I got all (6) 3/4 holes on one rail and used 2 bits and those are still good. On that same side I did get though all of the (5) 5/8ths holes By using a 11/16th bit. All (4) of the 5/8ths bit are toast.
I've got 3 more on the way now. I'm may have to find some more.