Mack toploaders are interchangeable and they have a power divider
i was wondering about that.There are a LOT of older (R, RD) macks for sale, especially if the cab is tore up and frame twisted. I was thinking either swap the axles out or swap only the chunks out. I did a google search for compatibility but came up empty.
Do you think the whole axle/trunion/frame would interchange w/o drilling holes in the frame?
I remember when i worked on big truck rite out of high school, the local cement place brought their trucks in for an upgraded trunion/frame replacement. It was a direct bolt up, but had to ream the 9/16 huck bolt holes out to 5/8 and installed bolt/nuts instead of hucks.
If the axle frame would slide (with the aid of a porta power to spread the truck frame just enough) in, if the mount holes would line up.
Those mack rear end frame sections are priced reasonable. just do a swap.