Few Rearend Rebuild questions

[canukracer]

i'm not sure with the soild pinion spacer? how do you get pinion bearing preload pinion and bearing preload are 2 different things, the way i do ring gear backlash and bearing preload is first move the ring gear to the pinion so it's meshing to the ring gear with this you have 0 backlash now add shims to the other side so they just fit in now add 10 to 15 thou shim extra to this it's hard to get in but this will give you backlash and bearing preload at the same time.